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Así de grandes pueden llegar a crecer estos árboles, la foto no es del árbol que se ven en la liga anterior, pero son la misma especie, esta foto es de un árbol de la oficina, acá al sur de Monterrey. Son árboles que no son aptos para baquetas, pues requieren mucho espacio para su desarrollo.
Este es una de las especies más comunes aquí en Nuevo León, sobre todo le gusta vivir en la parte baja de las montañas y se asocia mucho al matorral submontano.
También se le llega a conocer bajo el nombre científico de Quercus virginiana var. fusiformis.
Para que vean las diferencias en las hojas con otras especies:
A Christmas tree ornament made by CookieMonster's mom out of a couple of computer fan grates, electrical wiring and a blob of Polymorph.
Moem hosted a third installment of the Geeky Bling workshop, in which computer components were transformed into (Christmas) decorations.
Les Sources Occultes - Teaser /999
Réalisation Laurent Courau sur un scénario de thierry Ehrmann
blog.ehrmann.org/films2/les-sources-occultes-teaser.html
© Les Amis de l'Esprit de la Salamandre 1999
Entre effroi et merveilles, une zone mouvante aux portes du futur et des enfers... Les Sources Occultes vous entraînent au coeur d'un univers polymorphe dont les clés et les motifs se révéleront au fur et à mesure des épisodes de cette série de fictions. En attendant un final apocalyptique, au sens premier du terme, qui révélera la structure générale sous la forme d'un long-métrage...
Les Sources Occultes offre aussi une nouvelle porte d'entrée dans le labyrinthe multidimensionnel de la Demeure du Chaos à celles et ceux qui postulent à notre casting, une occasion unique de pénétrer les arcanes de l'Esprit de la Salamandre...
Secrets revealed of the Abode of Chaos (112 pages, adult only) >>>
Fluorescing diamonds from Zaire ("D.R. Congo"). (crystals are ~1 to 1.5 millimeters in size)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are about 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known. Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
The African diamonds shown above are yellow under white light. This photo was taken under ultraviolet (UV) light - "black light". The greenish and magenta colors are from the diamonds. The bright blue specks are fibers (not geologic objects).
Why do some minerals fluoresce under UV light? When short-wavelength UV radiation, long-wavelength UV radiation, or x-rays bombard atoms, electron excitation occurs. But the electrons do not remain in an energetically excited state. They quickly give off energy and resume their normal energy levels. If the electron energy release is in the visible spectrum of light, a mineral glows, or fluoresces.
FR Luzerne polymorphe - EN Toothed medick - ES Mielga de camino
Medicago polymorpha L. (port)
Friche (alt. 120 m)
Fraipont (province de Liège, Wallonie, Belgique)
Adventice (Ouest et Sud de l'Europe, Nord de l'Afrique, Érythrée, Éthiopie, Sud-Ouest de l'Asie, Ouest de l'Himalaya)
From Wikipedia: "The Khoikhoi (/ˈkɔɪˌkɔɪ/; "people people" or "real people") or Khoi, spelled Khoekhoe in standardised Khoekhoe/Nama orthography, are a group of Khoisan people native to southwestern Africa. Unlike the neighbouring San people, the Khoikhoi have traditionally practised pastoral agriculture. When European immigrants colonised the area after 1652, the Khoikhoi maintained large herds of Nguni cattle in the Cape region. The Dutch settlers labelled them Hottentots (/ˈhɒtənˌtɒts/), in imitation of the sound of the Khoekhoe language, but this term is today considered derogatory.
Archaeological evidence shows that the Khoikhoi arrived in what is now South Africa from Botswana through two distinct routes—travelling west, skirting the Kalahari to the west, then down to the Cape, and travelling southeast out into the Highveld and then southwards to the south coast.Chiefly, the largest group of the Khoikhoi to remain as a group are the Namas.
"Khoisan" (/ˈkɔɪsɑːn/; also spelled Khoesaan, Khoesan or Khoe–San) is a unifying name for two groups of peoples of Southern Africa, who share physical and putative linguistic characteristics distinct from the Bantu majority of the region. Culturally, the Khoisan are divided into the foraging San, or Bushmen, and the pastoral Khoi, or more specifically Khoikhoi, previously known as Hottentots.
The San include the indigenous inhabitants of Southern Africa before the southward Bantu migrations from Central and East Africa reached their region, which led to the Bantu populations displacing the Khoi and San to become the predominant inhabitants of Southern Africa. The distinct origin of the Khoi is debated. Over time, some Khoi abandoned pastoralism and adopted the hunter-gatherer economy of the San, probably due to a drying climate, and are now considered San. Similarly, the Bantu Damara people who migrated south later abandoned agriculture and adopted the Khoi economy. Large Khoisan populations remain in several arid areas in the region, notably in the Kalahari Desert.
In the 1990s, genomic studies of worlds peoples found that the Y chromosome of San men share certain patterns of polymorphisms that are distinct from those of all other populations.[10] Because the Y chromosome is highly conserved between generations, this type of DNA test is used to determine when different subgroups separated from one another, and hence their last common ancestry. The authors of these studies suggested that the San may have been one of the first populations to differentiate from the most recent common paternal ancestor of all extant humans, the so-called Y-chromosomal Adam by patrilineal descent, estimated to have lived 60,000 to 90,000 years ago. The authors also note that their results should be interpreted as only finding that the Khoisan "preserve ancient lineages", and not that they "stopped evolving" or are an "ancient group", since subsequent changes in their population are in parallel and similar to those of all other human populations.
Various Y-chromosome studies since confirmed that the Khoisan carry some of the most divergent (oldest) Y-chromosome haplogroups. These haplogroups are specific sub-groups of haplogroups A and B, the two earliest branches on the human Y-chromosome tree."
Size approx 15mm.
Superdomain: Neomura
Domain: Eukaryota
(unranked): Unikonta
(unranked): Obazoa
(unranked): Opisthokonta
(unranked) Holozoa
(unranked) Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
Clade: Bilateria
Clade: Nephrozoa
(unranked): Protostomia
Superphylum: Ecdysozoa
(unranked): Panarthropoda
(unranked): Tactopoda
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Subclass: Eumalacostraca
Superorder: Peracarida
Order: Isopoda
Suborder: Oniscidea
Family: Porcellionidae
Genus: Porcellio
Species: P. laevis
Phosphorescing diamonds from Zaire ("D.R. Congo"). (crystals are ~1 to 1.5 millimeters in size)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are about 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known. Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
The African diamonds shown above are yellow under white light and glow magenta or green under black light (ultraviolet light; UV). This photo was taken just after a UV light was turned off - no external light source is present. The soft glowing green color is phosphorescence.
These flowers are truly brilliant. And they bloom before the tree's leaves come out. Vibrant, lustrous red. Punctuated by emerging golden pollen covered stamen.
I first saw this at Fairchild Tropical Botanic Garden here in Miami but there's a deep pink one blooming in my neighborhood now. Amazing!
Erythrina is a genus of flowering plants in the pea family, Fabaceae. It contains about 130 species, which are distributed in tropical and subtropical regions worldwide. They are trees which grow up to 98 feet tall. The generic name is derived from the Greek word ερυθρóς (erythros), meaning red. However not all species of Erythrina have bright red flowers; some have an extraordinary variation in flower color, orange, yellow, salmon, green and white all being found within natural populations. This striking color polymorphism is likely unique in the genus.
This species has bean-like seedpods. Its buoyant seeds are carried by the sea for large distances and are commonly-found on the beach. Erythrina leaves are used as food plants by the larvae of some Lepidoptera. Many birds, particularly large hummingbirds, visit the nectar-rich Erythrina flowers.The seeds are eaten by many birds.
Coral Bean Tree, Erythrinia bidwillii
Asso cherokee bean or cardinal spear
Diamond crystal from the Precambrian of Australia.
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5200 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
The Western Australian diamond shown above is a brown octahedral crystal from the 1.178 billion year-old Argyle Lamproite (a.k.a. Argyle AK1 Lamproite, Argyle Diatreme, Argyle Lamproite Diatreme, Argyle AK1 Pipe). This diamondiferous unit was discovered in October 1979 using the classic prospecting technique of identifying indicator minerals in stream sediments. It is a unique diamondiferous unit due to its relative abundance of pink diamonds. Elsewhere on Earth, pink diamonds are exceedingly rare (two famous examples of subtly pink diamonds were found at Golconda, India and Tanzania, Africa). Pink diamonds from the Argyle Lamproite can be intensely pink, unlike those from outside Australia.
Several different colors of diamonds are processed at the Argyle Mine, including clear (“white”), pink, brown, yellowish-brown, and a few unimpressive blue diamonds. About 5% of Argyle diamonds are gem-quality. The public has been tricked into buying ugly brown diamonds (see above example) by their being marketed as "cognac diamonds" or "chocolate diamonds". Light brown-colored diamonds are cunningly marketed as “champagne diamonds”.
The two major facies of host rocks for Argyle diamonds are olivine lamproite lapilli-ash metatuff and sandy lamproite tuff (see: www.flickr.com/photos/jsjgeology/14636757350 and www.flickr.com/photos/jsjgeology/14843297313). The Argyle Lamproite Pipe erupted during the mid-Mesoproterozoic, at about 1.178 billion years ago. The included diamonds are much older (~1.6 billion years). The Argyle Pipe is fortuitously preserved. Nearby pipes have been eroded down to their roots. A quartzite ridge adjacent to the Argyle has protected it from erosion.
The pink coloration in some Argyle diamonds is apparently not the result of chemical impurity, which gives most diamonds their color variation. The pink color appears to be related to metamorphism-induced microfaulting or slippage of carbon atoms within the diamond crystals.
Geologic context: lamproite pipe emplaced along a splay of the Glenhill Fault, near-eastern margin of the Halls Creek Mobile Zone, eastern edge of the Kimberley Craton.
Location: Argyle Mine, near the headwaters of Smoke Creek, west of Lake Argyle, northwestern Western Australia (~16° 14’ South, ~128° 23’ East)
---------------------------
The Argyle write-up above is mostly synthesized from info. provided by Karen Rice (pers. comm.), Boxer et al. (1989), Jaques et al. (1989a, 1989b), and Pidgeon et al. (1989).
The latter four references are published in:
Kimberlites and related rocks, Volume 1, their composition, occurrence, origin and emplacement. Geological Society of Australia Special Publication 14.
As borboletas são insectos da ordem Lepidoptera classificados nas super-famílias Hesperioidea e Papilionoidea, que constituem o grupo informal Rhopalocera.
As borboletas têm dois pares de asas membranosas cobertas de escamas e peças bucais adaptadas a sucção. Distinguem-se das traças (mariposas) pelas antenas rectilíneas que terminam numa bola, pelos hábitos de vida diurnos, pela metamorfose que decorre dentro de uma crisálida rígida e pelo abdómen fino e alongado. Quando em repouso, as borboletas dobram as suas asas para cima.
As borboletas são importantes polinizadores de diversas espécies de plantas.
O ciclo de vida das borboletas engloba as seguintes etapas:
1) ovo→ fase pré-larval
2) larva→ chamada também de lagarta ou taturana,
3) pupa→ que se desenvolve dentro da crisálida (ou casulo)
4) imago→ fase adulta
_______________________
A butterfly is any of several groups of mainly day-flying insects of the order Lepidoptera, the butterflies and moths. Like other holometabolous insects, butterflies' life cycle consists of four parts, egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.
Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as agents of pollination. The caterpillars of some butterflies eat harmful insects. A few species are pests because in their larval stages they can damage domestic crops or trees. Culturally, butterflies are a popular motif in the visual and literary arts.
FR Marchantie protée - EN Star-headed liverwort
Marchantia polymorpha subsp. polymorpha L. (colonie)
Enrochement de fleuve canalisé (alt. 80 m)
Godinne (province de Namur, Wallonie, Belgique)
Indigène (Holarctique)
The Lizard Lifeboat Station can refer to several Royal National Lifeboat Institution lifeboat stations located on the Lizard in Cornwall, United Kingdom. The first was established at the southernmost point of the peninsula in 1859. Since then successive stations have all been in operation at different locations on The Lizard. The current station is located at Kilcobben Cove 0.5 mi (0.80 km) east of the village of Lizard.
The lifeboat stations have all covered the westerly approaches to the English Channel; with up to 400 ships-a-day, it is one of the busiest shipping lanes in the world. The lifeboat service has saved many lives over the past 150 years.
The RNLI established its first lifeboat at the southern tip of The Lizard in 1859. The station, which cost £120 to build, was located atop the cliffs above Polpeor Cove about 0.6 mi (0.97 km) south of the village of Lizard. It was inaugurated after the 740-ton steamer, Czar, foundered on the Vrogue Rock, off Bass Point on 22 January 1859. The government transport ship was taking ammunition and uniforms to Malta. Fishing crews from Cadgwith and Church Cove saved some of the crew but the captain and his family drowned. Following the tragedy, a Mrs Agar of Lanhydrock donated money to buy the first Lizard Lifeboat (Anna Maria).
However the location of the first lifeboat station on the cliff above Polpeor Cove was not ideal as it made launches a long and precarious operation in rough sea and weather. On 2 January 1866 the lifeboat broke up after it was launched on exercise during a storm. It was pushed on to rocks causing the death of its Coxswain Peter Mitchell and crew members Richard Harris and Nicholas Stevens. As a tribute to the loss, the RNLI gave £130 to the local lifeboat fund. (Location: 49°57′32.53″N 5°12′22.77″W)
In 1885 a larger station was built above the high-water mark lower down in Polpeor Cove to house a larger lifeboat.[1] The existing smaller craft was moved to a new station at Church Cove just east of Lizard village. (Location: 49°57′33.51″N 5°12′24.53″W)
The final lifeboat station within Polpeor Cove was completed in 1914. The large concrete building had an integrated slipway which meant the lifeboat was able to launch directly into the sea. However this could prove hazardous in rough conditions because of the number of rocks in the cove. The exposed position of the station also meant it required a great deal of expense to maintain its general upkeep.
In order to relaunch the lifeboat, a recovery system was used to haul it back into the boat house. First ropes were places around a natural rock pillar in the sea in order to turn the stern of the boat towards land. A giant wheel – at the rear of the station – was then used to winch the boat back up the slipway.
The result of these difficulties meant the RNLI was forced to spend money repairing the station and the lifeboats from time to time. By 1958, with the need to employ larger and faster lifeboats due to the growth in maritime commerce, the RNLI decided to close Polpeor Cove because of its operating limitations. The RNLI eventually chose Kilcobben Cove as it new location for The Lizard Lifeboat station because it was sufficiently protected to allow safe launches in all conditions. Polpeor Cove closed in 1961. (Location: 49°57′33.56″N 5°12′25.57″W)
In 1867 the RNLI placed a second lifeboat at the fishing village of Cadgwith on the east side of the Lizard. This service ran until 1963, when it was finally closed. The station was then integrated with the service at The Lizard's Kilcobben Cove. (Location: 49°59′14.25″N 5°10′46.56″W)
Church Cove station, which was built at a cost of £300, opened in 1885. It housed the original lifeboat from the first station at Polpeor Cove when that was replaced with a new building and a larger vessel. Church Cove station, which was 0.4 mi (0.64 km) from the village of Landewednack was used in conjunction with Polpeor Cove for 14 years until it was closed and sold off in 1899. (Location: 49°58′16.49″N 5°11′18.62″W)
The RNLI decided that a new station on The Lizard would be built at Kilcobben Cove 1.25 mi (2.01 km) east of The Lizard lighthouse. Construction was a major civil engineering project because the station and its slipway were built on a cliff just above the waterline. The station, which cost £90,000, was opened on 7 July, 1961 by the Duke of Edinburgh, who also named the new Barnett-class lifeboat Duke of Cornwall ON952. Due to the steepness of the cliff, a funicular railway carries the lifeboat crew down to the boathouse.
The lifeboat station was originally called The Lizard-Cadgwith Lifeboat Station because it recognised the merging of the two former services based at Polpeor Cove and Cadgwith. This name was officially changed in 1987 to The Lizard Lifeboat Station. In 1988 the station and the slipway required adaptation with the arrival of a Tyne-class lifeboat called David Robinson ON1145.
In 2010 the original station was demolished because it could not accommodate the latest Tamar-class lifeboats. During the rebuilding the lifeboat was kept moored afloat off Cadgwith. On 5 May 2012, the new station was officially opened by Admiral the Lord Boyce, chairman of the RNLI. On the same day, the station's new Tamar-class boat, which had replaced David Robinson the year before, was named Rose in a ceremony by the-then Lord Lieutenant of Cornwall, Lady Mary Holborow.
The Lizard (Cornish: An Lysardh) is a peninsula in southern Cornwall, England, United Kingdom. The most southerly point of the British mainland is near Lizard Point at SW 701115; Lizard village, also known as The Lizard, is the most southerly on the British mainland, and is in the civil parish of Landewednack, the most southerly parish. The valleys of the River Helford and Loe Pool form the northern boundary, with the rest of the peninsula surrounded by sea. The area measures about 14 by 14 miles (23 km × 23 km). The Lizard is one of England's natural regions and has been designated as a National Character Area 157 by Natural England. The peninsula is known for its geology and for its rare plants and lies within the Cornwall Area of Outstanding Natural Beauty (AONB).
The Lizard's coast is particularly hazardous to shipping and the seaways round the peninsula were historically known as the "Graveyard of Ships" (see below). The Lizard Lighthouse was built at Lizard Point in 1752 and the RNLI operates The Lizard lifeboat station.
Etymology
The name "Lizard" is most probably a corruption of the Cornish name "Lys Ardh", meaning "high court"; it is purely coincidental that much of the peninsula is composed of serpentinite-bearing rock. The peninsula's original name may have been the Celtic Bridanoc, from Britannakon ("the "British one"), preserved in the name of the former village of Predannack, now site of Predannack Airfield.
History
There is evidence of early habitation with several burial mounds and stones. Part of the peninsula is known as the Meneage (land of the monks).
Helston, the nearest town to the Lizard peninsula, is said to have once headed the estuary of the River Cober, before it was cut off from the sea by Loe Bar in the 13th century. It is speculated that Helston was once a port, but no records exist. Geomorphologists believe the bar was most likely formed by rising sea levels, after the last ice age, blocking the river and creating a barrier beach. The beach is formed mostly of flint and the nearest source is found offshore under the drowned terraces of the former river that flowed between England and France, and now under the English Channel. The medieval port of Helston was at Gweek, possibly from around 1260 onwards, on the Helford river which exported tin and copper. Helston was believed to be in existence in the sixth century, around the River Cober (Dowr Kohar). The name comes from the Cornish "hen lis" or "old court" and "ton" added later to denote a Saxon manor; the Domesday Book refers to it as Henliston (which survives as the name of a road in the town). It was granted its charter by King John in 1201. It was here that tin ingots were weighed to determine the duty due to the Duke of Cornwall when a number of stannary towns were authorised by royal decree.
The royal manor of Winnianton, which was held by King William I at the time of the Domesday Book (1086), was also the head manor of the hundred of Kerrier and the largest estate in Cornwall. It was assessed as having fifteen hides before 1066. At the time of Domesday there was land for sixty ploughs, but in the lord's land there were two ploughs and in the lands held by villeins twenty-four ploughs. There were twenty-four villeins, forty-one freedmen, thirty-three smallholders and fourteen slaves. There was 6 acres (24,000 m2), eight square leagues of pasture and half a square league of woodland. The livestock was fourteen unbroken mares, three cattle and one hundred and twenty-eight sheep (in total 145 beasts); its value was £12 annually. 11 of the hides were held by the Count of Mortain and there is more arable and pasture and 13 more persons are recorded: Rinsey, Trelowarren, Mawgan-in-Meneage and seventeen other lands are also recorded under Winnianton.
Mullion has the 15th century church of St Mellanus, and the Old Inn from the 16th century. The harbour was completed in 1895 and financed by Lord Robartes of Lanhydrock as a recompense to the fishermen for several disastrous pilchard seasons.
The small church of St Peter in Coverack, built in 1885 for £500, has a serpentinite pulpit.
The Great Western Railway operated a road motor service to The Lizard from Helston railway station. Commencing on 17 August 1903, it was the first successful British railway-run bus service and was initially provided as a cheaper alternative to a proposed light railway.
The Solar eclipse of 11 August 1999 departed the UK mainland from the Lizard.
The transatlantic record run of the unaccompanied one hand sailor Thomas Coville within less than 5 days in his sailboat Sodebo Ultim from New York, USA, to Europe landed here on 15 July 2017.
Nautical
The Lizard has been the site of many maritime disasters. It forms a natural obstacle to entry and exit of Falmouth and its naturally deep estuary. At Lizard Point stands the Lizard Lighthouse. In fact, the light was erected by Sir John Killigrew by his own expense: It was built at the cost of "20 nobles a year" for 30 years, but it caused an uproar over the following years, as King James I considered charging vessels to pass. This caused so many problems that the lighthouse was demolished, but was successfully rebuilt in 1751 by order of Thomas Fonnereau and remains almost unchanged today. Further east lie The Manacles, near Porthoustock: 1+1⁄2 square miles (4 km2) of jagged rocks just beneath the waves.
In 1721 the Royal Anne Galley, an oared frigate, was wrecked at Lizard Point. Of a crew of 185 only three survived; lost was Lord Belhaven who was en route to take up the Governorship of Barbados.
A 44-gun frigate, HMS Anson, was wrecked at Loe Bar in 1807. Although it wrecked close to shore, many lost their lives in the storm. This inspired Henry Trengrouse to invent the rocket-fired line, later to become the Breeches buoy.
The transport ship Dispatch ran aground on the Manacles in 1809 on its return from the Peninsular War, losing 104 men from the 7th Hussars. The following day, with local villagers still attempting a rescue, the Cruizer-class brig-sloop HMS Primrose hit the northern end of these rocks. The only survivor of its 126 officers, men and boys was a drummer boy.
5 Sept 1856 the Cherubim and Ocean Home collided off Lizard Point
The SS Mohegan, a 6,889 GRT passenger liner, also hit the Manacles in 1898 with the loss of 106 lives.
The American passenger liner Paris was stranded on the Manacles in 1899, with no loss of life.
The biggest rescue in the RNLI's history was 17 March 1907 when the 12,000-tonne liner SS Suevic hit the Maenheere Reef near Lizard Point in Cornwall. In a strong gale and dense fog RNLI lifeboat volunteers rescued 456 passengers, including 70 babies. Crews from the Lizard, Cadgwith, Coverack and Porthleven rowed out repeatedly for 16 hours to rescue all of the people on board. Six silver RNLI medals were later awarded, two to Suevic crew members.
The Battle at the Lizard, a naval battle, took place off The Lizard on 21 October 1707.
Smuggling was a regular, and often necessary, way of life in these parts, despite the efforts of coastguards or "Preventive men". In 1801, the king's pardon was offered to any smuggler giving information on the Mullion musket men involved in a gunfight with the crew of HM Gun Vessel Hecate.
Avionic
In the First World War a Naval Air Station was established at Bonython, flying mainly blimps used for spotting U-boats. One was sunk and several probably damaged by bombs dropped by the blimps. The airfield site is now occupied by the wind farm.
RAF Predannack Down (see Predannack Airfield) was a Second World War airbase, from which Coastal Command squadrons flew anti-submarine sorties into the Bay of Biscay as well as convoy support in the western English Channel. The runways still exist and the site is used by a local Air Cadet Volunteergliding Squadron 626VGS and as an emergency/relief base for RNAS Culdrose (HMS Seahawk).
RNAS Culdrose is Europe's largest helicopter base, and currently hosts the Training and Operational Conversion Unit operating the EH101 "Merlin" helicopter. It is also the home base for Merlin Squadrons embarked upon Royal Navy warships, the Westland Sea King airborne early warning (AEW) variant helicopter, a Search And Rescue (Sea King, again) helicopter flight, and some BAe Hawk T.1 trainer jets used for training purposes by the Royal Navy. The base also operates some other types of fixed wing aircraft for calibration and other training purposes. As befits the base's name, a non-flying example of a Hawker Sea Hawk forms the main gate guardian static display. RNAS Culdrose is a major contributor to the economy of The Lizard area.
Political
The Lizard peninsula is in the St Ives parliamentary constituency (which comprises the whole of the former district of Penwith and the southern part of the former district of Kerrier). However, the parishes northeast of the Helford River are in Camborne and Redruth parliamentary constituency
To the north, The Lizard peninsula is bordered by the civil parishes of Breage, Porthleven, Sithney, Helston, Wendron, Gweek and – across the Helford River – by Constantine, Kerrier and Mawnan.
The parishes on the peninsula proper are (west to east):
Northern parishes:
Gunwalloe
Cury
Mawgan-in-Meneage
St Martin-in-Meneage
Manaccan
St Anthony-in-Meneage
Southern parishes:
Mullion
Grade-Ruan
St Keverne
Landewednack
The Lizard's political history includes the 1497 Cornish rebellion which began in St Keverne. The village blacksmith Michael Joseph (Michael An Gof in Cornish, meaning blacksmith) led the uprising, protesting against the punitive taxes levied by Henry VII to pay for the war against the Scots. The uprising was routed on its march to London and the two leaders, Michael Joseph and Thomas Flamank, were subsequently hanged, drawn and quartered.
Technological
Titanium was discovered here by the Reverend William Gregor in 1791.
In 1869, John Pender formed the Falmouth Gibraltar and Malta Telegraph company, intending to connect India to England with an undersea cable. Although intended to land at Falmouth, the final landing point was Porthcurno near Land's End.
In 1900 Guglielmo Marconi stayed the Housel Bay Hotel in his quest to locate a coastal radio station to receive signals from ships equipped with his apparatus. He leased a plot "in the wheat field adjoining the hotel" where the Lizard Wireless Telegraph Station still stands today. Recently restored by the National Trust, it looks as it did in January 1901, when Marconi received the distance record signals of 186 miles (299 km) from his transmitter station at Niton, Isle of Wight. The Lizard Wireless Station is the oldest Marconi station to survive in its original state, and is located to the west of the Lloyds Signal Station in what appears to be a wooden hut. On 12 December 1901 Poldhu Point was the site of the first trans Atlantic, wireless signal radio communication when Marconi sent a signal to St John's, Newfoundland. The technology is one of the key advances to the development of radio, television, satellites and the internet.
A radar station called RAF Dry Tree was built during World War II. The site was later chosen for the Telstar project in 1962; its rocky foundations, clear atmosphere and extreme southerly location being uniquely suitable. This became the Goonhilly satellite earth station, now owned by Goonhilly Earth Station Ltd. Some important developments in television satellite transmission were made at Goonhilly station. A wind farm exists near to the Goonhilly station site.
Geology
Known as the Lizard Complex, the peninsula's geology is the best preserved example of an exposed ophiolite in the United Kingdom.
An ophiolite is a suite of geological formations which represent a slice through a section of ocean crust (including the upper level of the mantle) thrust onto the continental crust.
The Lizard formations comprise three main units; the serpentinites, the "oceanic complex" and the metamorphic basement. The serpentinite contains significant samples of the serpentine polymorph lizardite, which were named after the Lizard complex in 1955.
Ecology
Several nature sites exist on the Lizard Peninsula; Predannack nature reserve, Mullion Island, Goonhilly Downs, and the Cornish Seal Sanctuary at Gweek. An area of the Lizard covering 16.62 square kilometres (6.42 sq mi) is designated a national nature reserve because of its coastal grasslands and heaths and inland heaths. The peninsula contains 3 main Sites of Special Scientific Interest (SSSI), both noted for their endangered insects and plants, as well as their geology. The first is East Lizard Heathlands SSSI, the second is Caerthillian to Kennack SSSI and the third is West Lizard SSSI, of which the important wetland, Hayle Kimbro Pool, forms a part of.
The area is also home to one of England's rarest breeding birds — the Cornish chough. This species of corvid is distinctive due to its red beak and legs and haunting "chee-aw" call. Choughs were extinct in Cornwall but returned naturally in 2001 and began breeding on Lizard in 2002 following a concerted effort by the National Trust, English Nature and the RSPB.
The Lizard contains some of the most specialised flora of any area in Britain, including many Red Data Book plant species. Of particular note is the Cornish heath, Erica vagans, that occurs in abundance here, but which is found nowhere else in Britain. There are more than 600 species of flowering plants on the Lizard, nearly a quarter of all UK species. The reason for this richness is partly because of the many different and unusual Lizard rocks on the Lizard Peninsula. But above all, it is a coming together of multiple factors: a very mild maritime climate, but one prone to gales and salt winds; waterlogged and boggy soils, but ones that often parch and dry out in the summer; soils of greatly contrasting fertility and pH; and lastly man's influence. Any single factor taken on its own would influence the flora; taken together, they combine, overlap and interact. Contrasting plant communities grow side-by-side in a mosaic that changes within a few metres but also changes markedly over time with the cycle of heath fires. It's not so much that conditions are ideal for growth, but that there is such a variety of different, difficult conditions. Each habitat, with its own combination of factors, attracts its own specialist plants. It is also one of the few places where the rare formicine ant, Formica exsecta, (the narrow-headed ant), can be found.
Portrayal in literature, film and music
Daphne du Maurier based many novels on this part of Cornwall, including Frenchman's Creek.
The Lizard was featured on the BBC television programme Seven Natural Wonders as one of the wonders of the South West, and on the BBC series Coast.
In James Clavell's novel Shōgun, ship's pilot Vasco Rodrigues challenges John Blackthorne to recite the latitude of the Lizard to verify that Blackthorne is the Pilot of the Dutch vessel Erasmus.
The Jennifer McQuiston 2015 novel The Spinster's Guide to Scandalous Behavior is set primarily in the fictional village Lizard Bay on the Lizard in the mid-nineteenth century.
In the television adaptation of "Horatio Hornblower", an order is given to "Weather the Lizard" in the episode Hornblower:Mutiny.
"Lizard Point" is also a track on the 1982 album Ambient 4: On Land released by Brian Eno.
The book series "Fenton House" by Ben Cheetham is set on the Lizard Peninsula.
A text In English:
The Swallow-tailed Hummingbird, so called from its forked tail, is one of the largest hummingbirds in cities and gardens, but it also occurs in gallery forests, bushy pastures and edges of woods or coppices. It is green, except for the blue head and upper breast, turning to iridescent purple according to the direction of light; it has dark wings and a heavy black bill. The tail is dark blue with the external feathers longer than central ones. It is very aggressive and attacks other hummingbirds that dare to visit flowers in certain trees. Where the flowers are available for many months, the individual is fiercely territorial, but generally needs to search soon for other flowering plants. It flies to catch small insets on or under leaves in the gallery forests or woodlands. The female builds a small cup-shaped nest saddled on a branch, not far from the main trunk in the shade of leaves. Perched on favorite branches, the male can utter long but low chirps. Once in a while, it interrupts these singing sessions to feed, and flies back for more song or to clean the plumage. They occur from the Guianas and Amazon River to Paraguay and southeastern Peru. They can get along with partially deforested zones, but may disappear with intensive agriculture and with the development of treeless cities.
Um texto em Português:
Beija-flor Tesoura (Eupetomena macroura), fotografado em Brasília-DF, Brasil.
Eupetomena macroura (Gmelin, 1788): tesoura; swallow-tailed hummingbird c.
Destaca-se das espécies estudadas pelo maior porte e pela cauda comprida e bifurcada, o que lhe valeu o nome popular. Como é comum entre os beija-flores, é uma espécie agressiva que disputa com outras o seu território e fontes de alimento.
Nidificação: o ninho, em forma de tigela, é assentado numa forquilha de arbusto ou árvores, a cerca de 2 a 3 m do solo. O material utilizado na construção é composto por fibras vegetais incluindo painas, musgos e liquens, aderidos externamente com teias de aranhas.
Hábitat: capoeiras, cerrados, borda de matas e jardins.
Tamanho: 17,0 cm
A SEGUIR UM TEXTO ENCONTRADO E REPRODUZIDO DO ENDEREÇO nationalgeographic.abril.uol.com.br/ng/edicoes/83/reporta... DA NATIONAL GEOGRAFIC:
Prodígios da micro-engenharia, os beija-flores são os campeões dos pesos-leves entre as aves
Uma faísca safira, um frêmito de asas, e o minúsculo pássaro - ou seria um inseto? - some como miragem fugaz. Reaparece instantes depois, agora num ângulo melhor. É pássaro mesmo, um dervixe do tamanho do meu polegar com asas que batem 80 vertiginosas vezes por segundo, produzindo um zumbido quase inaudível. As penas da cauda, à guisa de leme, delicadamente direcionam o vôo em três direções. Ele fita a trombeta de uma vistosa flor alaranjada e do bico fino como agulha projeta uma língua delgada feito linha. Um raio de Sol ricocheteia de suas penas iridescentes. A cor refletida deslumbra como uma pedra preciosa contra uma janela ensolarada. Não admira que os beija-flores sejam tão queridos e que tanta gente já tenha tropeçado ao tentar descrevê-los. Nem mesmo circunspectos cientistas resistem a termos como "belo", "magnífico", "exótico".
Surpresa maior é o fato de o aparentemente frágil beija-flor ser uma das mais resistentes criaturas do reino animal. Cerca de 330 espécies prosperam em ambientes diversos, muitos deles brutais: do Alasca à Argentina, do deserto do Arizona à costa de Nova Scotia, da Amazônia à linha nevada acima dos 4,5 mil metros nos Andes (misteriosamente, essas aves só são encontradas no Novo Mundo).
"Eles vivem no limite do que é possível aos vertebrados, e com maestria", diz Karl Schuchmann, ornitólogo do Instituto Zoológico Alexander Koenig e do Fundo Brehm, na Alemanha. Schuchmann ouviu falar de um beija-flor que viveu 17 anos em cativeiro. "Imagine a resistência de um organismo de 5 ou 6 gramas para viver tanto tempo!", diz ele espantado. Em média, o minúsculo coração de um beija-flor bate cerca de 500 vezes por minuto (em repouso!). Assim, o desse pequeno cativo teria batido meio bilhão de vezes, quase o dobro do total de uma pessoa de 70 anos.
Mas esses passarinhos são duráveis apenas em vida. Quando morrem, seus ossos delicados e ocos quase nunca se fossilizam. Daí o assombro causado pela recente descoberta de um amontoado de fósseis de aves que talvez inclua um beija-flor ancestral de 30 milhões de anos. Como os beija-flores modernos, os espécimes fósseis tinham o bico longo e fino e os ossos superiores das asas mais curtos, terminando em uma saliência arredondada que talvez lhes permitisse fazer a rotação na articulação do ombro e parar no ar.
A outra surpresa foi o local do achado: no sul da Alemanha, longe do território dos beija-flores atuais. Para alguns cientistas, essa descoberta mostra que já existiram beija-flores fora das Américas, mas se extinguiram. Ou quem sabe os fósseis não fossem de beija-flor. Os céticos, entre eles Schuchmann, afirmam que muitas vezes, ao longo da evolução, outros grupos de aves adquiriram características semelhantes às do beija-flor. Os verdadeiros beija-flores, diz Schuchmann, evoluíram nas florestas do leste do Brasil, onde competiam com insetos pelo néctar das flores.
"O Brasil foi o laboratório do protótipo", diz o ornitólogo. "E o modelo funcionou." O beija-flor tornou-se a obra-prima da microengenharia da natureza. Aperfeiçoou sua habilidade de parar no ar há dezenas de milhões de anos para competir por parte das flores do Novo Mundo.
"Eles são uma ponte entre o mundo das aves e o dos insetos", diz Doug Altshuler, da Universidade da Califórnia em Riverside. Altshuler, que estuda o vôo dos beija-flores, examinou os movimentos das asas do pássaro. Observou que, nele, os impulsos elétricos propulsores dos músculos das asas lembram mais os dos insetos que os das aves. Talvez por isso o beija-flor produza tanta energia por batida de asas: mais, por unidade de massa, que qualquer outro vertebrado. Altshuler também analisou os trajetos neurais do beija-flor, que funcionam com a mesma vertiginosa velocidade encontrada nas aves mais ágeis, como seu primo mais próximo, o andorinhão. "São incríveis; uns pequenos Frankesteins", compara.
Certamente eles sabem intimidar: grama por grama, talvez sejam os maiores confrontadores da natureza. "O vocabulário do beija-flor deve ser 100% composto de palavrões", graceja Sheri Williamson, naturalista do Southeastern Arizona Bird Observatory. A agressão do beija-flor nasce de ferozes instintos territoriais moldados à necessidade de sugar néctar a cada poucos minutos. Os beija-flores competem desafiando e ameaçando uns aos outros. Postam-se face a face no ar, rodopiam, mergulham na direção da grama e voam de ré, em danças de dominância que terminam tão subitamente quanto começam.
O melhor lugar para vermos tais batalhas é nas montanhas, especialmente no Equador, em que ricos ecossistemas se apresentam em suas várias altitudes. Sheri supõe que o sentido norte-sul das cordilheiras americanas também crie rotas favoráveis à migração para onde haja constante suprimento de flores. O que contrasta, diz ela, com as barreiras naturais que se estendem de leste a oeste na África, como o Saara e o Mediterrâneo.
Algumas espécies de beija-flor, porém, adaptaram-se a atravessar vastidões planas, onde o alimento é escasso. Antes de sua intrépida migração da primavera para os Estados Unidos e o Canadá, os beija-flores-de-garganta-vermelha reúnem-se no México e empanturram-se de insetos e néctar. Armazenam gordura e duplicam de peso em uma semana. Em seguida, atravessam o golfo do México, voando 800 quilômetros sem escalas por 20 horas, até a costa distante.
A região próxima à linha do equador é um reino de beija-flores. Quem sai do aeroporto de Quito, no Equador, pode ser logo saudado por um cintilante beija-flor-violeta, com pintura de guerra de manchas púrpura iridescentes nos lados da face. A leste da cidade, nas cabeceiras da bacia Amazônica, o beija-flor-bico-de-espada esvoaça na mata portando o bico mais longo de todas as aves em proporção a seu tamanho: mais de metade do comprimento total do animal. Nas encostas do Cotopaxi, um vulcão ao sul de Quito, o beija-flor-do-chimborazo foi avistado acima dos 4,5 mil metros. Ali ele passa a noite entorpecido em cavernas, pois desacelera seu ritmo metabólico o suficiente para não morrer de fome antes de amanhecer. Mais tarde, aquecido pelo Sol, ele recomeça a se alimentar.
"Quem estuda beija-flores fica irremediavelmente enfeitiçado", diz Sheri Williamson. "São criaturinhas sedutoras. Tentei resistir, mas agora tenho sangue de beija-flor correndo nas veias."
Canon EOS 50D
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Ipê Amarelo, Tabebuia [chrysotricha or ochracea].
Text, in english, from Wikipedia, the free encyclopedia
"Trumpet tree" redirects here. This term is occasionally used for the Shield-leaved Pumpwood (Cecropia peltata).
Tabebuia
Flowering Araguaney or ipê-amarelo (Tabebuia chrysantha) in central Brazil
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Bignoniaceae
Tribe: Tecomeae
Genus: Tabebuia
Gomez
Species
Nearly 100.
Tabebuia is a neotropical genus of about 100 species in the tribe Tecomeae of the family Bignoniaceae. The species range from northern Mexico and the Antilles south to northern Argentina and central Venezuela, including the Caribbean islands of Hispaniola (Dominican Republic and Haiti) and Cuba. Well-known common names include Ipê, Poui, trumpet trees and pau d'arco.
They are large shrubs and trees growing to 5 to 50 m (16 to 160 ft.) tall depending on the species; many species are dry-season deciduous but some are evergreen. The leaves are opposite pairs, complex or palmately compound with 3–7 leaflets.
Tabebuia is a notable flowering tree. The flowers are 3 to 11 cm (1 to 4 in.) wide and are produced in dense clusters. They present a cupular calyx campanulate to tubular, truncate, bilabiate or 5-lobed. Corolla colors vary between species ranging from white, light pink, yellow, lavender, magenta, or red. The outside texture of the flower tube is either glabrous or pubescentThe fruit is a dehiscent pod, 10 to 50 cm (4 to 20 in.) long, containing numerous—in some species winged—seeds. These pods often remain on the tree through dry season until the beginning of the rainy.
Species in this genus are important as timber trees. The wood is used for furniture, decking, and other outdoor uses. It is increasingly popular as a decking material due to its insect resistance and durability. By 2007, FSC-certified ipê wood had become readily available on the market, although certificates are occasionally forged.
Tabebuia is widely used as ornamental tree in the tropics in landscaping gardens, public squares, and boulevards due to its impressive and colorful flowering. Many flowers appear on still leafless stems at the end of the dry season, making the floral display more conspicuous. They are useful as honey plants for bees, and are popular with certain hummingbirds. Naturalist Madhaviah Krishnan on the other hand once famously took offense at ipé grown in India, where it is not native.
Lapacho teaThe bark of several species has medical properties. The bark is dried, shredded, and then boiled making a bitter or sour-tasting brownish-colored tea. Tea from the inner bark of Pink Ipê (T. impetiginosa) is known as Lapacho or Taheebo. Its main active principles are lapachol, quercetin, and other flavonoids. It is also available in pill form. The herbal remedy is typically used during flu and cold season and for easing smoker's cough. It apparently works as expectorant, by promoting the lungs to cough up and free deeply embedded mucus and contaminants. However, lapachol is rather toxic and therefore a more topical use e.g. as antibiotic or pesticide may be advisable. Other species with significant folk medical use are T. alba and Yellow Lapacho (T. serratifolia)
Tabebuia heteropoda, T. incana, and other species are occasionally used as an additive to the entheogenic drink Ayahuasca.
Mycosphaerella tabebuiae, a plant pathogenic sac fungus, was first discovered on an ipê tree.
Tabebuia alba
Tabebuia anafensis
Tabebuia arimaoensis
Tabebuia aurea – Caribbean Trumpet Tree
Tabebuia bilbergii
Tabebuia bibracteolata
Tabebuia cassinoides
Tabebuia chrysantha – Araguaney, Yellow Ipê, tajibo (Bolivia), ipê-amarelo (Brazil), cañaguate (N Colombia)
Tabebuia chrysotricha – Golden Trumpet Tree
Tabebuia donnell-smithii Rose – Gold Tree, "Prima Vera", Cortez blanco (El Salvador), San Juan (Honduras), palo blanco (Guatemala),duranga (Mexico)
A native of Mexico and Central Americas, considered one of the most colorful of all Central American trees. The leaves are deciduous. Masses of golden-yellow flowers cover the crown after the leaves are shed.
Tabebuia dubia
Tabebuia ecuadorensis
Tabebuia elongata
Tabebuia furfuracea
Tabebuia geminiflora Rizz. & Mattos
Tabebuia guayacan (Seem.) Hemsl.
Tabebuia haemantha
Tabebuia heptaphylla (Vell.) Toledo – tajy
Tabebuia heterophylla – roble prieto
Tabebuia heteropoda
Tabebuia hypoleuca
Tabebuia impetiginosa – Pink Ipê, Pink Lapacho, ipê-cavatã, ipê-comum, ipê-reto, ipê-rosa, ipê-roxo-damata, pau d'arco-roxo, peúva, piúva (Brazil), lapacho negro (Spanish); not "brazilwood"
Tabebuia incana
Tabebuia jackiana
Tabebuia lapacho – lapacho amarillo
Tabebuia orinocensis A.H. Gentry[verification needed]
Tabebuia ochracea
Tabebuia oligolepis
Tabebuia pallida – Cuban Pink Trumpet Tree
Tabebuia platyantha
Tabebuia polymorpha
Tabebuia rosea (Bertol.) DC.[verification needed] (= T. pentaphylla (L.) Hemsley) – Pink Poui, Pink Tecoma, apama, apamate, matilisguate
A popular street tree in tropical cities because of its multi-annular masses of light pink to purple flowers and modest size. The roots are not especially destructive for roads and sidewalks. It is the national tree of El Salvador and the state tree of Cojedes, Venezuela
Tabebuia roseo-alba – White Ipê, ipê-branco (Brazil), lapacho blanco
Tabebuia serratifolia – Yellow Lapacho, Yellow Poui, ipê-roxo (Brazil)
Tabebuia shaferi
Tabebuia striata
Tabebuia subtilis Sprague & Sandwith
Tabebuia umbellata
Tabebuia vellosoi Toledo
Ipê-do-cerrado
Texto, em português, da Wikipédia, a enciclopédia livre.
Ipê-do-cerrado
Classificação científica
Reino: Plantae
Divisão: Magnoliophyta
Classe: Magnoliopsida
Subclasse: Asteridae
Ordem: Lamiales
Família: Bignoniaceae
Género: Tabebuia
Espécie: T. ochracea
Nome binomial
Tabebuia ochracea
(Cham.) Standl. 1832
Sinónimos
Bignonia tomentosa Pav. ex DC.
Handroanthus ochraceus (Cham.) Mattos
Tabebuia chrysantha (Jacq.) G. Nicholson
Tabebuia hypodictyon A. DC.) Standl.
Tabebuia neochrysantha A.H. Gentry
Tabebuia ochracea subsp. heteropoda (A. DC.) A.H. Gentry
Tabebuia ochracea subsp. neochrysantha (A.H. Gentry) A.H. Gentry
Tecoma campinae Kraenzl.
ecoma grandiceps Kraenzl.
Tecoma hassleri Sprague
Tecoma hemmendorffiana Kraenzl.
Tecoma heteropoda A. DC.
Tecoma hypodictyon A. DC.
Tecoma ochracea Cham.
Ipê-do-cerrado é um dos nomes populares da Tabebuia ochracea (Cham.) Standl. 1832, nativa do cerrado brasileiro, no estados de Amazonas, Pará, Maranhão, Piauí, Ceará, Pernambuco, Bahia, Espírito Santo, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Rio de Janeiro, São Paulo e Paraná.
Está na lista de espécies ameaçadas do estado de São Paulo, onde é encontrda também no domínio da Mata Atlântica[1].
Ocorre também na Argentina, Paraguai, Bolívia, Equador, Peru, Venezuela, Guiana, El Salvador, Guatemala e Panamá[2].
Há uma espécie homônima descrita por A.H. Gentry em 1992.
Outros nomes populares: ipê-amarelo, ipê-cascudo, ipê-do-campo, ipê-pardo, pau-d'arco-do-campo, piúva, tarumã.
Características
Altura de 6 a 14 m. Tronco tortuso com até 50 cm de diâmetro. Folhas pilosas em ambas as faces, mais na inferior, que é mais clara.
Planta decídua, heliófita, xerófita, nativa do cerrado em solos bem drenados.
Floresce de julho a setembro. Os frutos amadurecem de setembro a outubro.
FloresProduz grande quantidade de sementes leves, aladas com pequenas reservas, e que perdem a viabilidade em menos de 90 dias após coleta. A sua conservação vem sendo estudada em termos de determinação da condição ideal de armazenamento, e tem demonstrado a importância de se conhecer o comportamento da espécie quando armazenada com diferentes teores de umidade inicial, e a umidade de equilíbrio crítica para a espécie (KANO; MÁRQUEZ & KAGEYAMA, 1978). As levíssimas sementes aladas da espécie não necessitam de quebra de dormência. Podem apenas ser expostas ao sol por cerca de 6 horas e semeadas diretamente nos saquinhos. A germinação ocorre após 30 dias e de 80%. As sementes são ortodoxas e há aproximadamente 72 000 sementes em cada quilo.
O desenvolvimento da planta é rápido.
Como outros ipês, a madeira é usada em tacos, assoalhos, e em dormentes e postes. Presta-se também para peças torneadas e instrumento musicais.
Tabebuia alba (Ipê-Amarelo)
Texto, em português, produzido pela Acadêmica Giovana Beatriz Theodoro Marto
Supervisão e orientação do Prof. Luiz Ernesto George Barrichelo e do Eng. Paulo Henrique Müller
Atualizado em 10/07/2006
O ipê amarelo é a árvore brasileira mais conhecida, a mais cultivada e, sem dúvida nenhuma, a mais bela. É na verdade um complexo de nove ou dez espécies com características mais ou menos semelhantes, com flores brancas, amarelas ou roxas. Não há região do país onde não exista pelo menos uma espécie dele, porém a existência do ipê em habitat natural nos dias atuais é rara entre a maioria das espécies (LORENZI,2000).
A espécie Tabebuia alba, nativa do Brasil, é uma das espécies do gênero Tabebuia que possui “Ipê Amarelo” como nome popular. O nome alba provém de albus (branco em latim) e é devido ao tomento branco dos ramos e folhas novas.
As árvores desta espécie proporcionam um belo espetáculo com sua bela floração na arborização de ruas em algumas cidades brasileiras. São lindas árvores que embelezam e promovem um colorido no final do inverno. Existe uma crença popular de que quando o ipê-amarelo floresce não vão ocorrer mais geadas. Infelizmente, a espécie é considerada vulnerável quanto à ameaça de extinção.
A Tabebuia alba, natural do semi-árido alagoano está adaptada a todas as regiões fisiográficas, levando o governo, por meio do Decreto nº 6239, a transformar a espécie como a árvore símbolo do estado, estando, pois sob a sua tutela, não mais podendo ser suprimida de seus habitats naturais.
Taxonomia
Família: Bignoniaceae
Espécie: Tabebuia Alba (Chamiso) Sandwith
Sinonímia botânica: Handroanthus albus (Chamiso) Mattos; Tecoma alba Chamisso
Outros nomes vulgares: ipê-amarelo, ipê, aipê, ipê-branco, ipê-mamono, ipê-mandioca, ipê-ouro, ipê-pardo, ipê-vacariano, ipê-tabaco, ipê-do-cerrado, ipê-dourado, ipê-da-serra, ipezeiro, pau-d’arco-amarelo, taipoca.
Aspectos Ecológicos
O ipê-amarelo é uma espécie heliófita (Planta adaptada ao crescimento em ambiente aberto ou exposto à luz direta) e decídua (que perde as folhas em determinada época do ano). Pertence ao grupo das espécies secundárias iniciais (DURIGAN & NOGUEIRA, 1990).
Abrange a Floresta Pluvial da Mata Atlântica e da Floresta Latifoliada Semidecídua, ocorrendo principalmente no interior da Floresta Primária Densa. É característica de sub-bosques dos pinhais, onde há regeneração regular.
Informações Botânicas
Morfologia
As árvores de Tabebuia alba possuem cerca de 30 metros de altura. O tronco é reto ou levemente tortuoso, com fuste de 5 a 8 m de altura. A casca externa é grisáceo-grossa, possuindo fissuras longitudinais esparas e profundas. A coloração desta é cinza-rosa intenso, com camadas fibrosas, muito resistentes e finas, porém bem distintas.
Com ramos grossos, tortuosos e compridos, o ipê-amarelo possui copa alongada e alargada na base. As raízes de sustentação e absorção são vigorosas e profundas.
As folhas, deciduais, são opostas, digitadas e compostas. A face superior destas folhas é verde-escura, e, a face inferior, acinzentada, sendo ambas as faces tomentosas. Os pecíolos das folhas medem de 2,5 a 10 cm de comprimento. Os folíolos, geralmente, apresentam-se em número de 5 a 7, possuindo de 7 a 18 cm de comprimento por 2 a 6 cm de largura. Quando jovem estes folíolos são densamente pilosos em ambas as faces. O ápice destes é pontiagudo, com base arredondada e margem serreada.
As flores, grandes e lanceoladas, são de coloração amarelo-ouro. Possuem em média 8X15 cm.
Quanto aos frutos, estes possuem forma de cápsula bivalvar e são secos e deiscentes. Do tipo síliqua, lembram uma vagem. Medem de 15 a 30 cm de comprimento por 1,5 a 2,5 cm de largura. As valvas são finamente tomentosas com pêlos ramificados. Possuem grande quantidade de sementes.
As sementes são membranáceas brilhantes e esbranquiçadas, de coloração marrom. Possuem de 2 a 3 cm de comprimento por 7 a 9 mm de largura e são aladas.
Reprodução
A espécie é caducifólia e a queda das folhas coincide com o período de floração. A floração inicia-se no final de agosto, podendo ocorrer alguma variação devido a fenômenos climáticos. Como a espécie floresce no final do inverno é influenciada pela intensidade do mesmo. Quanto mais frio e seco for o inverno, maior será a intensidade da florada do ipê amarelo.
As flores por sua exuberância, atraem abelhas e pássaros, principalmente beija-flores que são importantes agentes polinizadores. Segundo CARVALHO (2003), a espécie possui como vetor de polinização a abelha mamangava (Bombus morio).
As sementes são dispersas pelo vento.
A planta é hermafrodita, e frutifica nos meses de setembro, outubro, novembro, dezembro, janeiro e fevereiro, dependendo da sua localização. Em cultivo, a espécie inicia o processo reprodutivo após o terceiro ano.
Ocorrência Natural
Ocorre naturalmente na Floresta Estaciobal Semidecicual, Floresta de Araucária e no Cerrado.
Segundo o IBGE, a Tabebuia alba (Cham.) Sandw. é uma árvore do Cerrado, Cerradão e Mata Seca. Apresentando-se nos campos secos (savana gramíneo-lenhosa), próximo às escarpas.
Clima
Segundo a classificação de Köppen, o ipê-amarelo abrange locais de clima tropical (Aw), subtropical úmido (Cfa), sutropical de altitude (Cwa e Cwb) e temperado.
A T.alba pode tolerar até 81 geadas em um ano. Ocorre em locais onde a temperatura média anual varia de 14,4ºC como mínimo e 22,4ºC como máximo.
Solo
A espécie prefere solos úmidos, com drenagem lenta e geralmente não muito ondulados (LONGHI, 1995).
Aparece em terras de boa à média fertilidade, em solos profundos ou rasos, nas matas e raramente cerradões (NOGUEIRA, 1977).
Pragas e Doenças
De acordo com CARVALHO (2003), possui como praga a espécie de coleópteros Cydianerus bohemani da família Curculionoideae e um outro coleóptero da família Chrysomellidae. Apesar da constatação de elevados índices populacionais do primeiro, os danos ocasionados até o momento são leves. Nas praças e ruas de Curitiba - PR, 31% das árvores foram atacadas pela Cochonilha Ceroplastes grandis.
ZIDKO (2002), ao estudar no município de Piracicaba a associação de coleópteros em espécies arbóreas, verificou a presença de insetos adultos da espécie Sitophilus linearis da família de coleópteros, Curculionidae, em estruturas reprodutivas. Os insetos adultos da espécie emergiram das vagens do ipê, danificando as sementes desta espécie nativa.
ANDRADE (1928) assinalou diversas espécies de Cerambycidae atacando essências florestais vivas, como ingazeiro, cinamomo, cangerana, cedro, caixeta, jacarandá, araribá, jatobá, entre outras como o ipê amarelo.
A Madeira
A Tabebuia alba produz madeira de grande durabilidade e resistência ao apodrecimento (LONGHI,1995).
MANIERI (1970) caracteriza o cerne desta espécie como de cor pardo-havana-claro, pardo-havan-escuro, ou pardo-acastanhado, com reflexos esverdeados. A superfície da madeira é irregularmente lustrosa, lisa ao tato, possuindo textura media e grã-direita.
Com densidade entre 0,90 e 1,15 grama por centímetro cúbico, a madeira é muito dura (LORENZI, 1992), apresentando grande dificuldade ao serrar.
A madeira possui cheiro e gosto distintos. Segundo LORENZI (1992), o cheiro característico é devido à presença da substância lapachol, ou ipeína.
Usos da Madeira
Sendo pesada, com cerne escuro, adquire grande valor comercial na marcenaria e carpintaria. Também é utilizada para fabricação de dormentes, moirões, pontes, postes, eixos de roda, varais de carroça, moendas de cana, etc.
Produtos Não-Madeireiros
A entrecasca do ipê-amarelo possui propriedades terapêuticas como adstringente, usada no tratamento de garganta e estomatites. É também usada como diurético.
O ipê-amarelo possui flores melíferas e que maduras podem ser utilizadas na alimentação humana.
Outros Usos
É comumente utilizada em paisagismo de parques e jardins pela beleza e porte. Além disso, é muito utilizada na arborização urbana.
Segundo MOREIRA & SOUZA (1987), o ipê-amarelo costuma povoar as beiras dos rios sendo, portanto, indicado para recomposição de matas ciliares. MARTINS (1986), também cita a espécie para recomposição de matas ciliares da Floresta Estacional Semidecidual, abrangendo alguns municípios das regiões Norte, Noroeste e parte do Oeste do Estado do Paraná.
Aspectos Silviculturais
Possui a tendência a crescer reto e sem bifurcações quando plantado em reflorestamento misto, pois é espécie monopodial. A desrrama se faz muito bem e a cicatrização é boa. Sendo assim, dificilmente encopa quando nova, a não ser que seja plantado em parques e jardins.
Ao ser utilizada em arborização urbana, o ipê amarelo requer podas de condução com freqüência mediana.
Espécie heliófila apresenta a pleno sol ramificação cimosa, registrando-se assim dicotomia para gema apical. Deve ser preconizada, para seu melhor aproveitamento madeireiro, podas de formação usuais (INQUE et al., 1983).
Produção de Mudas
A propagação deve realizada através de enxertia.
Os frutos devem ser coletados antes da dispersão, para evitar a perda de sementes. Após a coleta as sementes são postas em ambiente ventilado e a extração é feita manualmente. As sementes do ipê amarelo são ortodoxas, mantendo a viabilidade natural por até 3 meses em sala e por até 9 meses em vidro fechado, em câmara fria.
A condução das mudas deve ser feita a pleno sol. A muda atinge cerca de 30 cm em 9 meses, apresentando tolerância ao sol 3 semanas após a germinação.
Sementes
Os ipês, espécies do gênero Tabebuia, produzem uma grande quantidade de sementes leves, aladas com pequenas reservas, e que perdem a viabilidade em poucos dias após a sua coleta. A sua conservação vem sendo estudada em termos de determinação da condição ideal de armazenamento, e tem demonstrado a importância de se conhecer o comportamento da espécie quando armazenada com diferentes teores de umidade inicial, e a umidade de equilíbrio crítica para a espécie (KANO; MÁRQUEZ & KAGEYAMA, 1978).
As levíssimas sementes aladas da espécie não necessitam de quebra de dormência. Podem apenas ser expostas ao sol por cerca de 6 horas e semeadas diretamente nos saquinhos. A quebra natural leva cerca de 3 meses e a quebra na câmara leva 9 meses. A germinação ocorre após 30 dias e de 80%.
As sementes são ortodoxas e há aproximadamente 87000 sementes em cada quilo.
Preço da Madeira no Mercado
O preço médio do metro cúbico de pranchas de ipê no Estado do Pará cotado em Julho e Agosto de 2005 foi de R$1.200,00 o preço mínimo, R$ 1509,35 o médio e R$ 2.000,00 o preço máximo (CEPEA,2005).
Fluorescing diamonds from Zaire ("D.R. Congo"). (crystals are ~1 to 1.5 millimeters in size)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are about 5900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known. Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
The African diamonds seen here are yellow under white light. This photo was taken under ultraviolet (UV) light - "black light". The greenish and magenta colors are from the diamonds. The bright blue specks are fibers (not geologic objects).
Why do some minerals fluoresce under UV light? When short-wavelength UV radiation, long-wavelength UV radiation, or x-rays bombard atoms, electron excitation occurs. But the electrons do not remain in an energetically excited state. They quickly give off energy and resume their normal energy levels. If the electron energy release is in the visible spectrum of light, a mineral glows, or fluoresces.
Ipê Amarelo, Tabebuia [chrysotricha or ochracea].
Ipê-amarelo em Brasília, Brasil.
This tree is in Brasília, Capital of Brazil.
Text, in english, from Wikipedia, the free encyclopedia
"Trumpet tree" redirects here. This term is occasionally used for the Shield-leaved Pumpwood (Cecropia peltata).
Tabebuia
Flowering Araguaney or ipê-amarelo (Tabebuia chrysantha) in central Brazil
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Bignoniaceae
Tribe: Tecomeae
Genus: Tabebuia
Gomez
Species
Nearly 100.
Tabebuia is a neotropical genus of about 100 species in the tribe Tecomeae of the family Bignoniaceae. The species range from northern Mexico and the Antilles south to northern Argentina and central Venezuela, including the Caribbean islands of Hispaniola (Dominican Republic and Haiti) and Cuba. Well-known common names include Ipê, Poui, trumpet trees and pau d'arco.
They are large shrubs and trees growing to 5 to 50 m (16 to 160 ft.) tall depending on the species; many species are dry-season deciduous but some are evergreen. The leaves are opposite pairs, complex or palmately compound with 3–7 leaflets.
Tabebuia is a notable flowering tree. The flowers are 3 to 11 cm (1 to 4 in.) wide and are produced in dense clusters. They present a cupular calyx campanulate to tubular, truncate, bilabiate or 5-lobed. Corolla colors vary between species ranging from white, light pink, yellow, lavender, magenta, or red. The outside texture of the flower tube is either glabrous or pubescentThe fruit is a dehiscent pod, 10 to 50 cm (4 to 20 in.) long, containing numerous—in some species winged—seeds. These pods often remain on the tree through dry season until the beginning of the rainy.
Species in this genus are important as timber trees. The wood is used for furniture, decking, and other outdoor uses. It is increasingly popular as a decking material due to its insect resistance and durability. By 2007, FSC-certified ipê wood had become readily available on the market, although certificates are occasionally forged.
Tabebuia is widely used as ornamental tree in the tropics in landscaping gardens, public squares, and boulevards due to its impressive and colorful flowering. Many flowers appear on still leafless stems at the end of the dry season, making the floral display more conspicuous. They are useful as honey plants for bees, and are popular with certain hummingbirds. Naturalist Madhaviah Krishnan on the other hand once famously took offense at ipé grown in India, where it is not native.
Lapacho teaThe bark of several species has medical properties. The bark is dried, shredded, and then boiled making a bitter or sour-tasting brownish-colored tea. Tea from the inner bark of Pink Ipê (T. impetiginosa) is known as Lapacho or Taheebo. Its main active principles are lapachol, quercetin, and other flavonoids. It is also available in pill form. The herbal remedy is typically used during flu and cold season and for easing smoker's cough. It apparently works as expectorant, by promoting the lungs to cough up and free deeply embedded mucus and contaminants. However, lapachol is rather toxic and therefore a more topical use e.g. as antibiotic or pesticide may be advisable. Other species with significant folk medical use are T. alba and Yellow Lapacho (T. serratifolia)
Tabebuia heteropoda, T. incana, and other species are occasionally used as an additive to the entheogenic drink Ayahuasca.
Mycosphaerella tabebuiae, a plant pathogenic sac fungus, was first discovered on an ipê tree.
Tabebuia alba
Tabebuia anafensis
Tabebuia arimaoensis
Tabebuia aurea – Caribbean Trumpet Tree
Tabebuia bilbergii
Tabebuia bibracteolata
Tabebuia cassinoides
Tabebuia chrysantha – Araguaney, Yellow Ipê, tajibo (Bolivia), ipê-amarelo (Brazil), cañaguate (N Colombia)
Tabebuia chrysotricha – Golden Trumpet Tree
Tabebuia donnell-smithii Rose – Gold Tree, "Prima Vera", Cortez blanco (El Salvador), San Juan (Honduras), palo blanco (Guatemala),duranga (Mexico)
A native of Mexico and Central Americas, considered one of the most colorful of all Central American trees. The leaves are deciduous. Masses of golden-yellow flowers cover the crown after the leaves are shed.
Tabebuia dubia
Tabebuia ecuadorensis
Tabebuia elongata
Tabebuia furfuracea
Tabebuia geminiflora Rizz. & Mattos
Tabebuia guayacan (Seem.) Hemsl.
Tabebuia haemantha
Tabebuia heptaphylla (Vell.) Toledo – tajy
Tabebuia heterophylla – roble prieto
Tabebuia heteropoda
Tabebuia hypoleuca
Tabebuia impetiginosa – Pink Ipê, Pink Lapacho, ipê-cavatã, ipê-comum, ipê-reto, ipê-rosa, ipê-roxo-damata, pau d'arco-roxo, peúva, piúva (Brazil), lapacho negro (Spanish); not "brazilwood"
Tabebuia incana
Tabebuia jackiana
Tabebuia lapacho – lapacho amarillo
Tabebuia orinocensis A.H. Gentry[verification needed]
Tabebuia ochracea
Tabebuia oligolepis
Tabebuia pallida – Cuban Pink Trumpet Tree
Tabebuia platyantha
Tabebuia polymorpha
Tabebuia rosea (Bertol.) DC.[verification needed] (= T. pentaphylla (L.) Hemsley) – Pink Poui, Pink Tecoma, apama, apamate, matilisguate
A popular street tree in tropical cities because of its multi-annular masses of light pink to purple flowers and modest size. The roots are not especially destructive for roads and sidewalks. It is the national tree of El Salvador and the state tree of Cojedes, Venezuela
Tabebuia roseo-alba – White Ipê, ipê-branco (Brazil), lapacho blanco
Tabebuia serratifolia – Yellow Lapacho, Yellow Poui, ipê-roxo (Brazil)
Tabebuia shaferi
Tabebuia striata
Tabebuia subtilis Sprague & Sandwith
Tabebuia umbellata
Tabebuia vellosoi Toledo
Ipê-do-cerrado
Texto, em português, da Wikipédia, a enciclopédia livre.
Ipê-do-cerrado
Classificação científica
Reino: Plantae
Divisão: Magnoliophyta
Classe: Magnoliopsida
Subclasse: Asteridae
Ordem: Lamiales
Família: Bignoniaceae
Género: Tabebuia
Espécie: T. ochracea
Nome binomial
Tabebuia ochracea
(Cham.) Standl. 1832
Sinónimos
Bignonia tomentosa Pav. ex DC.
Handroanthus ochraceus (Cham.) Mattos
Tabebuia chrysantha (Jacq.) G. Nicholson
Tabebuia hypodictyon A. DC.) Standl.
Tabebuia neochrysantha A.H. Gentry
Tabebuia ochracea subsp. heteropoda (A. DC.) A.H. Gentry
Tabebuia ochracea subsp. neochrysantha (A.H. Gentry) A.H. Gentry
Tecoma campinae Kraenzl.
ecoma grandiceps Kraenzl.
Tecoma hassleri Sprague
Tecoma hemmendorffiana Kraenzl.
Tecoma heteropoda A. DC.
Tecoma hypodictyon A. DC.
Tecoma ochracea Cham.
Ipê-do-cerrado é um dos nomes populares da Tabebuia ochracea (Cham.) Standl. 1832, nativa do cerrado brasileiro, no estados de Amazonas, Pará, Maranhão, Piauí, Ceará, Pernambuco, Bahia, Espírito Santo, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Rio de Janeiro, São Paulo e Paraná.
Está na lista de espécies ameaçadas do estado de São Paulo, onde é encontrda também no domínio da Mata Atlântica[1].
Ocorre também na Argentina, Paraguai, Bolívia, Equador, Peru, Venezuela, Guiana, El Salvador, Guatemala e Panamá[2].
Há uma espécie homônima descrita por A.H. Gentry em 1992.
Outros nomes populares: ipê-amarelo, ipê-cascudo, ipê-do-campo, ipê-pardo, pau-d'arco-do-campo, piúva, tarumã.
Características
Altura de 6 a 14 m. Tronco tortuso com até 50 cm de diâmetro. Folhas pilosas em ambas as faces, mais na inferior, que é mais clara.
Planta decídua, heliófita, xerófita, nativa do cerrado em solos bem drenados.
Floresce de julho a setembro. Os frutos amadurecem de setembro a outubro.
FloresProduz grande quantidade de sementes leves, aladas com pequenas reservas, e que perdem a viabilidade em menos de 90 dias após coleta. A sua conservação vem sendo estudada em termos de determinação da condição ideal de armazenamento, e tem demonstrado a importância de se conhecer o comportamento da espécie quando armazenada com diferentes teores de umidade inicial, e a umidade de equilíbrio crítica para a espécie (KANO; MÁRQUEZ & KAGEYAMA, 1978). As levíssimas sementes aladas da espécie não necessitam de quebra de dormência. Podem apenas ser expostas ao sol por cerca de 6 horas e semeadas diretamente nos saquinhos. A germinação ocorre após 30 dias e de 80%. As sementes são ortodoxas e há aproximadamente 72 000 sementes em cada quilo.
O desenvolvimento da planta é rápido.
Como outros ipês, a madeira é usada em tacos, assoalhos, e em dormentes e postes. Presta-se também para peças torneadas e instrumento musicais.
Tabebuia alba (Ipê-Amarelo)
Texto, em português, produzido pela Acadêmica Giovana Beatriz Theodoro Marto
Supervisão e orientação do Prof. Luiz Ernesto George Barrichelo e do Eng. Paulo Henrique Müller
Atualizado em 10/07/2006
O ipê amarelo é a árvore brasileira mais conhecida, a mais cultivada e, sem dúvida nenhuma, a mais bela. É na verdade um complexo de nove ou dez espécies com características mais ou menos semelhantes, com flores brancas, amarelas ou roxas. Não há região do país onde não exista pelo menos uma espécie dele, porém a existência do ipê em habitat natural nos dias atuais é rara entre a maioria das espécies (LORENZI,2000).
A espécie Tabebuia alba, nativa do Brasil, é uma das espécies do gênero Tabebuia que possui “Ipê Amarelo” como nome popular. O nome alba provém de albus (branco em latim) e é devido ao tomento branco dos ramos e folhas novas.
As árvores desta espécie proporcionam um belo espetáculo com sua bela floração na arborização de ruas em algumas cidades brasileiras. São lindas árvores que embelezam e promovem um colorido no final do inverno. Existe uma crença popular de que quando o ipê-amarelo floresce não vão ocorrer mais geadas. Infelizmente, a espécie é considerada vulnerável quanto à ameaça de extinção.
A Tabebuia alba, natural do semi-árido alagoano está adaptada a todas as regiões fisiográficas, levando o governo, por meio do Decreto nº 6239, a transformar a espécie como a árvore símbolo do estado, estando, pois sob a sua tutela, não mais podendo ser suprimida de seus habitats naturais.
Taxonomia
Família: Bignoniaceae
Espécie: Tabebuia Alba (Chamiso) Sandwith
Sinonímia botânica: Handroanthus albus (Chamiso) Mattos; Tecoma alba Chamisso
Outros nomes vulgares: ipê-amarelo, ipê, aipê, ipê-branco, ipê-mamono, ipê-mandioca, ipê-ouro, ipê-pardo, ipê-vacariano, ipê-tabaco, ipê-do-cerrado, ipê-dourado, ipê-da-serra, ipezeiro, pau-d’arco-amarelo, taipoca.
Aspectos Ecológicos
O ipê-amarelo é uma espécie heliófita (Planta adaptada ao crescimento em ambiente aberto ou exposto à luz direta) e decídua (que perde as folhas em determinada época do ano). Pertence ao grupo das espécies secundárias iniciais (DURIGAN & NOGUEIRA, 1990).
Abrange a Floresta Pluvial da Mata Atlântica e da Floresta Latifoliada Semidecídua, ocorrendo principalmente no interior da Floresta Primária Densa. É característica de sub-bosques dos pinhais, onde há regeneração regular.
Informações Botânicas
Morfologia
As árvores de Tabebuia alba possuem cerca de 30 metros de altura. O tronco é reto ou levemente tortuoso, com fuste de 5 a 8 m de altura. A casca externa é grisáceo-grossa, possuindo fissuras longitudinais esparas e profundas. A coloração desta é cinza-rosa intenso, com camadas fibrosas, muito resistentes e finas, porém bem distintas.
Com ramos grossos, tortuosos e compridos, o ipê-amarelo possui copa alongada e alargada na base. As raízes de sustentação e absorção são vigorosas e profundas.
As folhas, deciduais, são opostas, digitadas e compostas. A face superior destas folhas é verde-escura, e, a face inferior, acinzentada, sendo ambas as faces tomentosas. Os pecíolos das folhas medem de 2,5 a 10 cm de comprimento. Os folíolos, geralmente, apresentam-se em número de 5 a 7, possuindo de 7 a 18 cm de comprimento por 2 a 6 cm de largura. Quando jovem estes folíolos são densamente pilosos em ambas as faces. O ápice destes é pontiagudo, com base arredondada e margem serreada.
As flores, grandes e lanceoladas, são de coloração amarelo-ouro. Possuem em média 8X15 cm.
Quanto aos frutos, estes possuem forma de cápsula bivalvar e são secos e deiscentes. Do tipo síliqua, lembram uma vagem. Medem de 15 a 30 cm de comprimento por 1,5 a 2,5 cm de largura. As valvas são finamente tomentosas com pêlos ramificados. Possuem grande quantidade de sementes.
As sementes são membranáceas brilhantes e esbranquiçadas, de coloração marrom. Possuem de 2 a 3 cm de comprimento por 7 a 9 mm de largura e são aladas.
Reprodução
A espécie é caducifólia e a queda das folhas coincide com o período de floração. A floração inicia-se no final de agosto, podendo ocorrer alguma variação devido a fenômenos climáticos. Como a espécie floresce no final do inverno é influenciada pela intensidade do mesmo. Quanto mais frio e seco for o inverno, maior será a intensidade da florada do ipê amarelo.
As flores por sua exuberância, atraem abelhas e pássaros, principalmente beija-flores que são importantes agentes polinizadores. Segundo CARVALHO (2003), a espécie possui como vetor de polinização a abelha mamangava (Bombus morio).
As sementes são dispersas pelo vento.
A planta é hermafrodita, e frutifica nos meses de setembro, outubro, novembro, dezembro, janeiro e fevereiro, dependendo da sua localização. Em cultivo, a espécie inicia o processo reprodutivo após o terceiro ano.
Ocorrência Natural
Ocorre naturalmente na Floresta Estaciobal Semidecicual, Floresta de Araucária e no Cerrado.
Segundo o IBGE, a Tabebuia alba (Cham.) Sandw. é uma árvore do Cerrado, Cerradão e Mata Seca. Apresentando-se nos campos secos (savana gramíneo-lenhosa), próximo às escarpas.
Clima
Segundo a classificação de Köppen, o ipê-amarelo abrange locais de clima tropical (Aw), subtropical úmido (Cfa), sutropical de altitude (Cwa e Cwb) e temperado.
A T.alba pode tolerar até 81 geadas em um ano. Ocorre em locais onde a temperatura média anual varia de 14,4ºC como mínimo e 22,4ºC como máximo.
Solo
A espécie prefere solos úmidos, com drenagem lenta e geralmente não muito ondulados (LONGHI, 1995).
Aparece em terras de boa à média fertilidade, em solos profundos ou rasos, nas matas e raramente cerradões (NOGUEIRA, 1977).
Pragas e Doenças
De acordo com CARVALHO (2003), possui como praga a espécie de coleópteros Cydianerus bohemani da família Curculionoideae e um outro coleóptero da família Chrysomellidae. Apesar da constatação de elevados índices populacionais do primeiro, os danos ocasionados até o momento são leves. Nas praças e ruas de Curitiba - PR, 31% das árvores foram atacadas pela Cochonilha Ceroplastes grandis.
ZIDKO (2002), ao estudar no município de Piracicaba a associação de coleópteros em espécies arbóreas, verificou a presença de insetos adultos da espécie Sitophilus linearis da família de coleópteros, Curculionidae, em estruturas reprodutivas. Os insetos adultos da espécie emergiram das vagens do ipê, danificando as sementes desta espécie nativa.
ANDRADE (1928) assinalou diversas espécies de Cerambycidae atacando essências florestais vivas, como ingazeiro, cinamomo, cangerana, cedro, caixeta, jacarandá, araribá, jatobá, entre outras como o ipê amarelo.
A Madeira
A Tabebuia alba produz madeira de grande durabilidade e resistência ao apodrecimento (LONGHI,1995).
MANIERI (1970) caracteriza o cerne desta espécie como de cor pardo-havana-claro, pardo-havan-escuro, ou pardo-acastanhado, com reflexos esverdeados. A superfície da madeira é irregularmente lustrosa, lisa ao tato, possuindo textura media e grã-direita.
Com densidade entre 0,90 e 1,15 grama por centímetro cúbico, a madeira é muito dura (LORENZI, 1992), apresentando grande dificuldade ao serrar.
A madeira possui cheiro e gosto distintos. Segundo LORENZI (1992), o cheiro característico é devido à presença da substância lapachol, ou ipeína.
Usos da Madeira
Sendo pesada, com cerne escuro, adquire grande valor comercial na marcenaria e carpintaria. Também é utilizada para fabricação de dormentes, moirões, pontes, postes, eixos de roda, varais de carroça, moendas de cana, etc.
Produtos Não-Madeireiros
A entrecasca do ipê-amarelo possui propriedades terapêuticas como adstringente, usada no tratamento de garganta e estomatites. É também usada como diurético.
O ipê-amarelo possui flores melíferas e que maduras podem ser utilizadas na alimentação humana.
Outros Usos
É comumente utilizada em paisagismo de parques e jardins pela beleza e porte. Além disso, é muito utilizada na arborização urbana.
Segundo MOREIRA & SOUZA (1987), o ipê-amarelo costuma povoar as beiras dos rios sendo, portanto, indicado para recomposição de matas ciliares. MARTINS (1986), também cita a espécie para recomposição de matas ciliares da Floresta Estacional Semidecidual, abrangendo alguns municípios das regiões Norte, Noroeste e parte do Oeste do Estado do Paraná.
Aspectos Silviculturais
Possui a tendência a crescer reto e sem bifurcações quando plantado em reflorestamento misto, pois é espécie monopodial. A desrrama se faz muito bem e a cicatrização é boa. Sendo assim, dificilmente encopa quando nova, a não ser que seja plantado em parques e jardins.
Ao ser utilizada em arborização urbana, o ipê amarelo requer podas de condução com freqüência mediana.
Espécie heliófila apresenta a pleno sol ramificação cimosa, registrando-se assim dicotomia para gema apical. Deve ser preconizada, para seu melhor aproveitamento madeireiro, podas de formação usuais (INQUE et al., 1983).
Produção de Mudas
A propagação deve realizada através de enxertia.
Os frutos devem ser coletados antes da dispersão, para evitar a perda de sementes. Após a coleta as sementes são postas em ambiente ventilado e a extração é feita manualmente. As sementes do ipê amarelo são ortodoxas, mantendo a viabilidade natural por até 3 meses em sala e por até 9 meses em vidro fechado, em câmara fria.
A condução das mudas deve ser feita a pleno sol. A muda atinge cerca de 30 cm em 9 meses, apresentando tolerância ao sol 3 semanas após a germinação.
Sementes
Os ipês, espécies do gênero Tabebuia, produzem uma grande quantidade de sementes leves, aladas com pequenas reservas, e que perdem a viabilidade em poucos dias após a sua coleta. A sua conservação vem sendo estudada em termos de determinação da condição ideal de armazenamento, e tem demonstrado a importância de se conhecer o comportamento da espécie quando armazenada com diferentes teores de umidade inicial, e a umidade de equilíbrio crítica para a espécie (KANO; MÁRQUEZ & KAGEYAMA, 1978).
As levíssimas sementes aladas da espécie não necessitam de quebra de dormência. Podem apenas ser expostas ao sol por cerca de 6 horas e semeadas diretamente nos saquinhos. A quebra natural leva cerca de 3 meses e a quebra na câmara leva 9 meses. A germinação ocorre após 30 dias e de 80%.
As sementes são ortodoxas e há aproximadamente 87000 sementes em cada quilo.
Preço da Madeira no Mercado
O preço médio do metro cúbico de pranchas de ipê no Estado do Pará cotado em Julho e Agosto de 2005 foi de R$1.200,00 o preço mínimo, R$ 1509,35 o médio e R$ 2.000,00 o preço máximo (CEPEA,2005).
Anthodites in a cave in Virginia, USA.
"Cave formations" in caves are technically called speleothem. Most speleothem is composed of travertine, a crystalline-textured chemical sedimentary rock composed of calcite (CaCO3). Travertine forms in most caves and at some springs by precipitation of crystals from water. Travertine speleothem occurs in a wide variety of forms. The most common variety of travertine speleothem is dripstone, which forms by the action of dripping water. The second-most common type of travertine speleothem is flowstone, which forms by precipitation of crystals from relatively thin films of flowing water. Flowstone typically has the appearance of a frozen waterfalls.
Shown above are anthodites, a scarce variety of speleothem that was first described from this very cave - Skyline Caverns in Virginia. Anthodites are radiating clusters of quill-like to slightly vermiform structures. Individual anthodite quills are hollow. Mineral analysis by White (1994) has shown that they are composed of aragonite (CaCO3), which is a polymorph of calcite. Some have recrystallized to calcite. The anthodites of Skyline Caverns were originally in sealed chambers in a mostly-sediment filled cave passage. During tourist trail construction, workers dug out sediments and encountered small chambers having common anthodites. They were subsequently named and described in the literature in 1949. The anthodite-bearing chambers were unusual in having near-vacuum conditions. Upon opening one chamber, a worker's hat was sucked in by the low air pressure.
When pure calcium carbonate, anthodites are white-colored. The yellows and browns seen above are from iron oxides. The slightly green coloration is from algae that grows in tourist trail lighting.
Skyline Caverns is developed in structurally tilted carbonates (mixed dolostones and limestones) of the Rockdale Run Formation (Beekmantown Group, Lower Ordovician).
Locality: Skyline Caverns, Front Royal, central Warren County, northern Virginia, USA
-------------------
Reference cited:
White (1994) - The anthodites from Skyline Caverns, Virginia: the type locality. National Speleological Society Bulletin (Journal of Caves and Karst Studies) 56: 23-26.
Douze sculptures énigmatiques d'Ugo Rondinone, représentant chacune un mois de l'année, intitulées Sunrise East, sont exposées au jardin des Tuileries à Paris, dans le cadre du 38ème festival d'automne.
Ugo Rondinone est un artiste né en Suisse, en 1964, auteur d'une oeuvre polymorphe composée de vidéos, photographies, sculptures, néons,..
www.festival-automne.com/fr/programme.php?programme_id=258
voir aussi les oeuvres d'Ugo Rondinone et d'Urs Fischer présentées dans l'église San Stae pour le pavillon suisse lors de la Biennale de Venise 2007.
A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for their unusual life cycle with a larval caterpillar stage, an inactive pupal stage, and a spectacular metamorphosis into a familiar and colourful winged adult form. Most species are day-flying so they regularly attract attention. The diverse patterns formed by their brightly coloured wings and their erratic yet graceful flight have made butterfly watching a hobby.
Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). Butterflies exhibit polymorphism, mimicry and aposematism. Some migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as agents of pollination. In addition, a few species are pests, because they can damage domestic crops and trees in their larval stage.
Culturally, butterflies are a popular motif in the visual and literary arts.
This girl was supposed to arrive last week on the 9th, but freaking USPS decided to hold onto her until today and give me anxiety all week. x_x; But anyway, she’s hope and that’s what matters! Kira from Komorebi Dolls did an absolutely fantastic job on her faceup and hangs. ; w ;
This is my girl Olimpia! I got the doll back in November last year and then sent her out to get painted back in March, so I’ve been without her for a good whilee. So happy to have her back together!
Anyway, as far as my daydreaming goes, she’s found a home mainly in The Witcher universe. I’m currently stuck on if she should be a higher vampire, polymorphing dragon, or a mage. 🤔 Kinda leaning towards vampire thanks to Regis in the books. 😂 He’s easily become one of my favorite characters (always gonna love Dandelion/Jaskier the most tho bahah).
As borboletas são insectos da ordem Lepidoptera classificados nas super-famílias Hesperioidea e Papilionoidea, que constituem o grupo informal Rhopalocera.
As borboletas têm dois pares de asas membranosas cobertas de escamas e peças bucais adaptadas a sucção. Distinguem-se das traças (mariposas) pelas antenas rectilíneas que terminam numa bola, pelos hábitos de vida diurnos, pela metamorfose que decorre dentro de uma crisálida rígida e pelo abdómen fino e alongado. Quando em repouso, as borboletas dobram as suas asas para cima.
As borboletas são importantes polinizadores de diversas espécies de plantas.
O ciclo de vida das borboletas engloba as seguintes etapas:
1) ovo→ fase pré-larval
2) larva→ chamada também de lagarta ou taturana,
3) pupa→ que se desenvolve dentro da crisálida (ou casulo)
4) imago→ fase adulta
_______________________
A butterfly is any of several groups of mainly day-flying insects of the order Lepidoptera, the butterflies and moths. Like other holometabolous insects, butterflies' life cycle consists of four parts, egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.
Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as agents of pollination. The caterpillars of some butterflies eat harmful insects. A few species are pests because in their larval stages they can damage domestic crops or trees. Culturally, butterflies are a popular motif in the visual and literary arts.
Nancy Fang Yuan is a Dean’s Honored Graduate in the Department of Molecular Biosciences, graduating with a Bachelor of Science in Biology, specializing in Cell and Molecular Biology. She’s also completed a Bachelor of Arts in History. She’s being recognized for her outstanding academic record, with a GPA of 3.4679, and her research in three different areas.
Nancy started her research in Professor Adrian Keatinge-Clay’s laboratory, working to characterize the structure of dehydrates domain of the type I trans-AT difficidin synthase. In these efforts she learned how to obtain genomic DNA from a variety of bacteria, clone out genes of interest, express/purify the corresponding proteins, and perform crystallization screens of those proteins. She identified one dehydratase from the difficidin polyketide synthase that formed crystals. The structure was solved using a microfocused beamline at the Advanced Photon Source and resulted in a paper that has been submitted to the journal Chemistry & Biology.
During this research, Nancy also got excited about a different branch of research, nucleic acid nanotechnology, an interest she was able to pursue through the UT Biomolecular Design (BIOMOD) team under the direction of Professor Andrew Ellington. BIOMOD teams develop novel nanoscale assemblies and compete at a ‘jamboree’ competition every year. In their first year, Nancy and her team tested catalyzed hairpin assembly (CHA) circuit to detect single-nucleotide polymorphisms in the cancer-linked MDM2 gene and presented the research at the Harvard Wyss Institute, helping the team win Gold for their project. Nancy’s work with the team has continued, including a research project in which she designed a nucleic acid-based circuit that can potentially detect apurinic sites generated by ricin and bacterial toxins. Nancy continued as one of the most productive members of the BIOMOD team, which attempted to build up a DNA origami structure that had G-wires growing outward from the scaffold, resembling a Chia Pet (hence the endearing name, Chiagami). Nancy and her team members optimized conditions for G-wire growth and successfully observed the linear G-wire structure by TEM. She took charge of making a video about the project, which helped the team win a Silver award when they returned to the Wyss Institute.
In 2014, Nancy was awarded a ten-week paid traineeship through the Cancer Prevention Research Institute of Texas (CPRIT). She worked on a collaboration between the labs of Dr. Ellington and Dr. Jonathan Sessler on an electrochemical DNA project using ferrocene-modified DNA. By the end of the fellowship, she helped synthesize a new ferrocene compound and further optimized conditions for electrode sensing.
In addition to her research, Nancy tutored other undergraduates enrolled in beginning and advanced-level biology courses, calculus, psychology, introductory Spanish, and conversational English. Her patience and engaging personality have earned her highest ratings at the Sanger Learning Center. For the past five semesters, she has also worked as a TA in a genetics lab.
Next fall she plans to enroll in the Biological Sciences Ph.D. program at UC San Diego to pursue her research interests in synthetic biology and biochemistry.
As borboletas são insectos da ordem Lepidoptera classificados nas super-famílias Hesperioidea e Papilionoidea, que constituem o grupo informal Rhopalocera.
As borboletas têm dois pares de asas membranosas cobertas de escamas e peças bucais adaptadas a sucção. Distinguem-se das traças (mariposas) pelas antenas rectilíneas que terminam numa bola, pelos hábitos de vida diurnos, pela metamorfose que decorre dentro de uma crisálida rígida e pelo abdómen fino e alongado. Quando em repouso, as borboletas dobram as suas asas para cima.
As borboletas são importantes polinizadores de diversas espécies de plantas.
O ciclo de vida das borboletas engloba as seguintes etapas:
1) ovo→ fase pré-larval
2) larva→ chamada também de lagarta ou taturana,
3) pupa→ que se desenvolve dentro da crisálida (ou casulo)
4) imago→ fase adulta
_______________________
A butterfly is any of several groups of mainly day-flying insects of the order Lepidoptera, the butterflies and moths. Like other holometabolous insects, butterflies' life cycle consists of four parts, egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.
Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as agents of pollination. The caterpillars of some butterflies eat harmful insects. A few species are pests because in their larval stages they can damage domestic crops or trees. Culturally, butterflies are a popular motif in the visual and literary arts.
Graphite from Ceylon (Sri Lanka). (public display, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA).
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon principally occurs in its native state as the minerals graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. Graphite has a metallic luster and a silvery-gray color. It is very soft (H = 1), has a slick, greasy feel, and readily marks paper. Graphite does have cleavage, but it is not apparent at the hand specimen scale. The ability of graphite to mark paper, its softness, and its greasy feel are all a consequence of cleavage sheets easily slipping over each other on a microscopic scale.
Moem hosted a third installment of the Geeky Bling workshop, in which computer components were transformed into (Christmas) decorations.
Ipê Amarelo, Tabebuia [chrysotricha or ochracea].
Ipê-amarelo em Brasília, Brasil.
This tree is in Brasília, Capital of Brazil.
Text, in english, from Wikipedia, the free encyclopedia
"Trumpet tree" redirects here. This term is occasionally used for the Shield-leaved Pumpwood (Cecropia peltata).
Tabebuia
Flowering Araguaney or ipê-amarelo (Tabebuia chrysantha) in central Brazil
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Bignoniaceae
Tribe: Tecomeae
Genus: Tabebuia
Gomez
Species
Nearly 100.
Tabebuia is a neotropical genus of about 100 species in the tribe Tecomeae of the family Bignoniaceae. The species range from northern Mexico and the Antilles south to northern Argentina and central Venezuela, including the Caribbean islands of Hispaniola (Dominican Republic and Haiti) and Cuba. Well-known common names include Ipê, Poui, trumpet trees and pau d'arco.
They are large shrubs and trees growing to 5 to 50 m (16 to 160 ft.) tall depending on the species; many species are dry-season deciduous but some are evergreen. The leaves are opposite pairs, complex or palmately compound with 3–7 leaflets.
Tabebuia is a notable flowering tree. The flowers are 3 to 11 cm (1 to 4 in.) wide and are produced in dense clusters. They present a cupular calyx campanulate to tubular, truncate, bilabiate or 5-lobed. Corolla colors vary between species ranging from white, light pink, yellow, lavender, magenta, or red. The outside texture of the flower tube is either glabrous or pubescentThe fruit is a dehiscent pod, 10 to 50 cm (4 to 20 in.) long, containing numerous—in some species winged—seeds. These pods often remain on the tree through dry season until the beginning of the rainy.
Species in this genus are important as timber trees. The wood is used for furniture, decking, and other outdoor uses. It is increasingly popular as a decking material due to its insect resistance and durability. By 2007, FSC-certified ipê wood had become readily available on the market, although certificates are occasionally forged.
Tabebuia is widely used as ornamental tree in the tropics in landscaping gardens, public squares, and boulevards due to its impressive and colorful flowering. Many flowers appear on still leafless stems at the end of the dry season, making the floral display more conspicuous. They are useful as honey plants for bees, and are popular with certain hummingbirds. Naturalist Madhaviah Krishnan on the other hand once famously took offense at ipé grown in India, where it is not native.
Lapacho teaThe bark of several species has medical properties. The bark is dried, shredded, and then boiled making a bitter or sour-tasting brownish-colored tea. Tea from the inner bark of Pink Ipê (T. impetiginosa) is known as Lapacho or Taheebo. Its main active principles are lapachol, quercetin, and other flavonoids. It is also available in pill form. The herbal remedy is typically used during flu and cold season and for easing smoker's cough. It apparently works as expectorant, by promoting the lungs to cough up and free deeply embedded mucus and contaminants. However, lapachol is rather toxic and therefore a more topical use e.g. as antibiotic or pesticide may be advisable. Other species with significant folk medical use are T. alba and Yellow Lapacho (T. serratifolia)
Tabebuia heteropoda, T. incana, and other species are occasionally used as an additive to the entheogenic drink Ayahuasca.
Mycosphaerella tabebuiae, a plant pathogenic sac fungus, was first discovered on an ipê tree.
Tabebuia alba
Tabebuia anafensis
Tabebuia arimaoensis
Tabebuia aurea – Caribbean Trumpet Tree
Tabebuia bilbergii
Tabebuia bibracteolata
Tabebuia cassinoides
Tabebuia chrysantha – Araguaney, Yellow Ipê, tajibo (Bolivia), ipê-amarelo (Brazil), cañaguate (N Colombia)
Tabebuia chrysotricha – Golden Trumpet Tree
Tabebuia donnell-smithii Rose – Gold Tree, "Prima Vera", Cortez blanco (El Salvador), San Juan (Honduras), palo blanco (Guatemala),duranga (Mexico)
A native of Mexico and Central Americas, considered one of the most colorful of all Central American trees. The leaves are deciduous. Masses of golden-yellow flowers cover the crown after the leaves are shed.
Tabebuia dubia
Tabebuia ecuadorensis
Tabebuia elongata
Tabebuia furfuracea
Tabebuia geminiflora Rizz. & Mattos
Tabebuia guayacan (Seem.) Hemsl.
Tabebuia haemantha
Tabebuia heptaphylla (Vell.) Toledo – tajy
Tabebuia heterophylla – roble prieto
Tabebuia heteropoda
Tabebuia hypoleuca
Tabebuia impetiginosa – Pink Ipê, Pink Lapacho, ipê-cavatã, ipê-comum, ipê-reto, ipê-rosa, ipê-roxo-damata, pau d'arco-roxo, peúva, piúva (Brazil), lapacho negro (Spanish); not "brazilwood"
Tabebuia incana
Tabebuia jackiana
Tabebuia lapacho – lapacho amarillo
Tabebuia orinocensis A.H. Gentry[verification needed]
Tabebuia ochracea
Tabebuia oligolepis
Tabebuia pallida – Cuban Pink Trumpet Tree
Tabebuia platyantha
Tabebuia polymorpha
Tabebuia rosea (Bertol.) DC.[verification needed] (= T. pentaphylla (L.) Hemsley) – Pink Poui, Pink Tecoma, apama, apamate, matilisguate
A popular street tree in tropical cities because of its multi-annular masses of light pink to purple flowers and modest size. The roots are not especially destructive for roads and sidewalks. It is the national tree of El Salvador and the state tree of Cojedes, Venezuela
Tabebuia roseo-alba – White Ipê, ipê-branco (Brazil), lapacho blanco
Tabebuia serratifolia – Yellow Lapacho, Yellow Poui, ipê-roxo (Brazil)
Tabebuia shaferi
Tabebuia striata
Tabebuia subtilis Sprague & Sandwith
Tabebuia umbellata
Tabebuia vellosoi Toledo
Ipê-do-cerrado
Texto, em português, da Wikipédia, a enciclopédia livre.
Ipê-do-cerrado
Classificação científica
Reino: Plantae
Divisão: Magnoliophyta
Classe: Magnoliopsida
Subclasse: Asteridae
Ordem: Lamiales
Família: Bignoniaceae
Género: Tabebuia
Espécie: T. ochracea
Nome binomial
Tabebuia ochracea
(Cham.) Standl. 1832
Sinónimos
Bignonia tomentosa Pav. ex DC.
Handroanthus ochraceus (Cham.) Mattos
Tabebuia chrysantha (Jacq.) G. Nicholson
Tabebuia hypodictyon A. DC.) Standl.
Tabebuia neochrysantha A.H. Gentry
Tabebuia ochracea subsp. heteropoda (A. DC.) A.H. Gentry
Tabebuia ochracea subsp. neochrysantha (A.H. Gentry) A.H. Gentry
Tecoma campinae Kraenzl.
ecoma grandiceps Kraenzl.
Tecoma hassleri Sprague
Tecoma hemmendorffiana Kraenzl.
Tecoma heteropoda A. DC.
Tecoma hypodictyon A. DC.
Tecoma ochracea Cham.
Ipê-do-cerrado é um dos nomes populares da Tabebuia ochracea (Cham.) Standl. 1832, nativa do cerrado brasileiro, no estados de Amazonas, Pará, Maranhão, Piauí, Ceará, Pernambuco, Bahia, Espírito Santo, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Rio de Janeiro, São Paulo e Paraná.
Está na lista de espécies ameaçadas do estado de São Paulo, onde é encontrda também no domínio da Mata Atlântica[1].
Ocorre também na Argentina, Paraguai, Bolívia, Equador, Peru, Venezuela, Guiana, El Salvador, Guatemala e Panamá[2].
Há uma espécie homônima descrita por A.H. Gentry em 1992.
Outros nomes populares: ipê-amarelo, ipê-cascudo, ipê-do-campo, ipê-pardo, pau-d'arco-do-campo, piúva, tarumã.
Características
Altura de 6 a 14 m. Tronco tortuso com até 50 cm de diâmetro. Folhas pilosas em ambas as faces, mais na inferior, que é mais clara.
Planta decídua, heliófita, xerófita, nativa do cerrado em solos bem drenados.
Floresce de julho a setembro. Os frutos amadurecem de setembro a outubro.
FloresProduz grande quantidade de sementes leves, aladas com pequenas reservas, e que perdem a viabilidade em menos de 90 dias após coleta. A sua conservação vem sendo estudada em termos de determinação da condição ideal de armazenamento, e tem demonstrado a importância de se conhecer o comportamento da espécie quando armazenada com diferentes teores de umidade inicial, e a umidade de equilíbrio crítica para a espécie (KANO; MÁRQUEZ & KAGEYAMA, 1978). As levíssimas sementes aladas da espécie não necessitam de quebra de dormência. Podem apenas ser expostas ao sol por cerca de 6 horas e semeadas diretamente nos saquinhos. A germinação ocorre após 30 dias e de 80%. As sementes são ortodoxas e há aproximadamente 72 000 sementes em cada quilo.
O desenvolvimento da planta é rápido.
Como outros ipês, a madeira é usada em tacos, assoalhos, e em dormentes e postes. Presta-se também para peças torneadas e instrumento musicais.
Tabebuia alba (Ipê-Amarelo)
Texto, em português, produzido pela Acadêmica Giovana Beatriz Theodoro Marto
Supervisão e orientação do Prof. Luiz Ernesto George Barrichelo e do Eng. Paulo Henrique Müller
Atualizado em 10/07/2006
O ipê amarelo é a árvore brasileira mais conhecida, a mais cultivada e, sem dúvida nenhuma, a mais bela. É na verdade um complexo de nove ou dez espécies com características mais ou menos semelhantes, com flores brancas, amarelas ou roxas. Não há região do país onde não exista pelo menos uma espécie dele, porém a existência do ipê em habitat natural nos dias atuais é rara entre a maioria das espécies (LORENZI,2000).
A espécie Tabebuia alba, nativa do Brasil, é uma das espécies do gênero Tabebuia que possui “Ipê Amarelo” como nome popular. O nome alba provém de albus (branco em latim) e é devido ao tomento branco dos ramos e folhas novas.
As árvores desta espécie proporcionam um belo espetáculo com sua bela floração na arborização de ruas em algumas cidades brasileiras. São lindas árvores que embelezam e promovem um colorido no final do inverno. Existe uma crença popular de que quando o ipê-amarelo floresce não vão ocorrer mais geadas. Infelizmente, a espécie é considerada vulnerável quanto à ameaça de extinção.
A Tabebuia alba, natural do semi-árido alagoano está adaptada a todas as regiões fisiográficas, levando o governo, por meio do Decreto nº 6239, a transformar a espécie como a árvore símbolo do estado, estando, pois sob a sua tutela, não mais podendo ser suprimida de seus habitats naturais.
Taxonomia
Família: Bignoniaceae
Espécie: Tabebuia Alba (Chamiso) Sandwith
Sinonímia botânica: Handroanthus albus (Chamiso) Mattos; Tecoma alba Chamisso
Outros nomes vulgares: ipê-amarelo, ipê, aipê, ipê-branco, ipê-mamono, ipê-mandioca, ipê-ouro, ipê-pardo, ipê-vacariano, ipê-tabaco, ipê-do-cerrado, ipê-dourado, ipê-da-serra, ipezeiro, pau-d’arco-amarelo, taipoca.
Aspectos Ecológicos
O ipê-amarelo é uma espécie heliófita (Planta adaptada ao crescimento em ambiente aberto ou exposto à luz direta) e decídua (que perde as folhas em determinada época do ano). Pertence ao grupo das espécies secundárias iniciais (DURIGAN & NOGUEIRA, 1990).
Abrange a Floresta Pluvial da Mata Atlântica e da Floresta Latifoliada Semidecídua, ocorrendo principalmente no interior da Floresta Primária Densa. É característica de sub-bosques dos pinhais, onde há regeneração regular.
Informações Botânicas
Morfologia
As árvores de Tabebuia alba possuem cerca de 30 metros de altura. O tronco é reto ou levemente tortuoso, com fuste de 5 a 8 m de altura. A casca externa é grisáceo-grossa, possuindo fissuras longitudinais esparas e profundas. A coloração desta é cinza-rosa intenso, com camadas fibrosas, muito resistentes e finas, porém bem distintas.
Com ramos grossos, tortuosos e compridos, o ipê-amarelo possui copa alongada e alargada na base. As raízes de sustentação e absorção são vigorosas e profundas.
As folhas, deciduais, são opostas, digitadas e compostas. A face superior destas folhas é verde-escura, e, a face inferior, acinzentada, sendo ambas as faces tomentosas. Os pecíolos das folhas medem de 2,5 a 10 cm de comprimento. Os folíolos, geralmente, apresentam-se em número de 5 a 7, possuindo de 7 a 18 cm de comprimento por 2 a 6 cm de largura. Quando jovem estes folíolos são densamente pilosos em ambas as faces. O ápice destes é pontiagudo, com base arredondada e margem serreada.
As flores, grandes e lanceoladas, são de coloração amarelo-ouro. Possuem em média 8X15 cm.
Quanto aos frutos, estes possuem forma de cápsula bivalvar e são secos e deiscentes. Do tipo síliqua, lembram uma vagem. Medem de 15 a 30 cm de comprimento por 1,5 a 2,5 cm de largura. As valvas são finamente tomentosas com pêlos ramificados. Possuem grande quantidade de sementes.
As sementes são membranáceas brilhantes e esbranquiçadas, de coloração marrom. Possuem de 2 a 3 cm de comprimento por 7 a 9 mm de largura e são aladas.
Reprodução
A espécie é caducifólia e a queda das folhas coincide com o período de floração. A floração inicia-se no final de agosto, podendo ocorrer alguma variação devido a fenômenos climáticos. Como a espécie floresce no final do inverno é influenciada pela intensidade do mesmo. Quanto mais frio e seco for o inverno, maior será a intensidade da florada do ipê amarelo.
As flores por sua exuberância, atraem abelhas e pássaros, principalmente beija-flores que são importantes agentes polinizadores. Segundo CARVALHO (2003), a espécie possui como vetor de polinização a abelha mamangava (Bombus morio).
As sementes são dispersas pelo vento.
A planta é hermafrodita, e frutifica nos meses de setembro, outubro, novembro, dezembro, janeiro e fevereiro, dependendo da sua localização. Em cultivo, a espécie inicia o processo reprodutivo após o terceiro ano.
Ocorrência Natural
Ocorre naturalmente na Floresta Estaciobal Semidecicual, Floresta de Araucária e no Cerrado.
Segundo o IBGE, a Tabebuia alba (Cham.) Sandw. é uma árvore do Cerrado, Cerradão e Mata Seca. Apresentando-se nos campos secos (savana gramíneo-lenhosa), próximo às escarpas.
Clima
Segundo a classificação de Köppen, o ipê-amarelo abrange locais de clima tropical (Aw), subtropical úmido (Cfa), sutropical de altitude (Cwa e Cwb) e temperado.
A T.alba pode tolerar até 81 geadas em um ano. Ocorre em locais onde a temperatura média anual varia de 14,4ºC como mínimo e 22,4ºC como máximo.
Solo
A espécie prefere solos úmidos, com drenagem lenta e geralmente não muito ondulados (LONGHI, 1995).
Aparece em terras de boa à média fertilidade, em solos profundos ou rasos, nas matas e raramente cerradões (NOGUEIRA, 1977).
Pragas e Doenças
De acordo com CARVALHO (2003), possui como praga a espécie de coleópteros Cydianerus bohemani da família Curculionoideae e um outro coleóptero da família Chrysomellidae. Apesar da constatação de elevados índices populacionais do primeiro, os danos ocasionados até o momento são leves. Nas praças e ruas de Curitiba - PR, 31% das árvores foram atacadas pela Cochonilha Ceroplastes grandis.
ZIDKO (2002), ao estudar no município de Piracicaba a associação de coleópteros em espécies arbóreas, verificou a presença de insetos adultos da espécie Sitophilus linearis da família de coleópteros, Curculionidae, em estruturas reprodutivas. Os insetos adultos da espécie emergiram das vagens do ipê, danificando as sementes desta espécie nativa.
ANDRADE (1928) assinalou diversas espécies de Cerambycidae atacando essências florestais vivas, como ingazeiro, cinamomo, cangerana, cedro, caixeta, jacarandá, araribá, jatobá, entre outras como o ipê amarelo.
A Madeira
A Tabebuia alba produz madeira de grande durabilidade e resistência ao apodrecimento (LONGHI,1995).
MANIERI (1970) caracteriza o cerne desta espécie como de cor pardo-havana-claro, pardo-havan-escuro, ou pardo-acastanhado, com reflexos esverdeados. A superfície da madeira é irregularmente lustrosa, lisa ao tato, possuindo textura media e grã-direita.
Com densidade entre 0,90 e 1,15 grama por centímetro cúbico, a madeira é muito dura (LORENZI, 1992), apresentando grande dificuldade ao serrar.
A madeira possui cheiro e gosto distintos. Segundo LORENZI (1992), o cheiro característico é devido à presença da substância lapachol, ou ipeína.
Usos da Madeira
Sendo pesada, com cerne escuro, adquire grande valor comercial na marcenaria e carpintaria. Também é utilizada para fabricação de dormentes, moirões, pontes, postes, eixos de roda, varais de carroça, moendas de cana, etc.
Produtos Não-Madeireiros
A entrecasca do ipê-amarelo possui propriedades terapêuticas como adstringente, usada no tratamento de garganta e estomatites. É também usada como diurético.
O ipê-amarelo possui flores melíferas e que maduras podem ser utilizadas na alimentação humana.
Outros Usos
É comumente utilizada em paisagismo de parques e jardins pela beleza e porte. Além disso, é muito utilizada na arborização urbana.
Segundo MOREIRA & SOUZA (1987), o ipê-amarelo costuma povoar as beiras dos rios sendo, portanto, indicado para recomposição de matas ciliares. MARTINS (1986), também cita a espécie para recomposição de matas ciliares da Floresta Estacional Semidecidual, abrangendo alguns municípios das regiões Norte, Noroeste e parte do Oeste do Estado do Paraná.
Aspectos Silviculturais
Possui a tendência a crescer reto e sem bifurcações quando plantado em reflorestamento misto, pois é espécie monopodial. A desrrama se faz muito bem e a cicatrização é boa. Sendo assim, dificilmente encopa quando nova, a não ser que seja plantado em parques e jardins.
Ao ser utilizada em arborização urbana, o ipê amarelo requer podas de condução com freqüência mediana.
Espécie heliófila apresenta a pleno sol ramificação cimosa, registrando-se assim dicotomia para gema apical. Deve ser preconizada, para seu melhor aproveitamento madeireiro, podas de formação usuais (INQUE et al., 1983).
Produção de Mudas
A propagação deve realizada através de enxertia.
Os frutos devem ser coletados antes da dispersão, para evitar a perda de sementes. Após a coleta as sementes são postas em ambiente ventilado e a extração é feita manualmente. As sementes do ipê amarelo são ortodoxas, mantendo a viabilidade natural por até 3 meses em sala e por até 9 meses em vidro fechado, em câmara fria.
A condução das mudas deve ser feita a pleno sol. A muda atinge cerca de 30 cm em 9 meses, apresentando tolerância ao sol 3 semanas após a germinação.
Sementes
Os ipês, espécies do gênero Tabebuia, produzem uma grande quantidade de sementes leves, aladas com pequenas reservas, e que perdem a viabilidade em poucos dias após a sua coleta. A sua conservação vem sendo estudada em termos de determinação da condição ideal de armazenamento, e tem demonstrado a importância de se conhecer o comportamento da espécie quando armazenada com diferentes teores de umidade inicial, e a umidade de equilíbrio crítica para a espécie (KANO; MÁRQUEZ & KAGEYAMA, 1978).
As levíssimas sementes aladas da espécie não necessitam de quebra de dormência. Podem apenas ser expostas ao sol por cerca de 6 horas e semeadas diretamente nos saquinhos. A quebra natural leva cerca de 3 meses e a quebra na câmara leva 9 meses. A germinação ocorre após 30 dias e de 80%.
As sementes são ortodoxas e há aproximadamente 87000 sementes em cada quilo.
Preço da Madeira no Mercado
O preço médio do metro cúbico de pranchas de ipê no Estado do Pará cotado em Julho e Agosto de 2005 foi de R$1.200,00 o preço mínimo, R$ 1509,35 o médio e R$ 2.000,00 o preço máximo (CEPEA,2005).
Faceted diamonds - "Cumulus" brooch, out of focus to highlight refracted colors. (public display, Field Museum of Natural History, Chicago, Illinois, USA)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5200 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
Arbusto alto y delgado, de 2,5-4 m de altura, ramas e inflorescencias ferruginosas o sedoso-tomentosas. Hojas en su mayoría oblongo-lineales o lanceoladas, obtusas o agudas, enteras, ahusadas en un pecíolo, de 2-8 cm de largo x 2,5-10 mm de ancho, raramente más o menos pinnatífidas, gruesas, lisas y sin nervios en el haz, envés densamente tomentoso, nervio central prominente, los márgenes suelen ser con aspecto de nervio o recurvados. Racimos terminales, cortos y densos. Pedicelos de 6-12 mm de largo. Frutos verde oscuro o negros, de 2-3 cm de largo. Crece en bosques subalpinos, vegetación de matorrales de tierras bajas en áreas más húmedas, y ocasionalmente en la selva tropical. Australia: Tasmania. En Iturraran se encuentra en la zona 4.
Tall slender shrub, to 2,5-4 m tall, branches and inflorescences ferruginous or silky-tomentose. Leaves mostly oblong-linear or lanceolate, obtuse or acute, entire, tapering into a petiole, 2-8 cm long x 2,5-10 mm wide, rarely more or less pinnatifid, thick, smooth and veinless above, densely but closely tomentose beneath, the midrib prominent, the margins often nerve-like or recurved. Racemes terminal, short and dense. Pedicels 6-12 mm long. Perianth pubescent, white, cream or white-greenish, 1,25 cm long. Fruit dark grey to black, 2-3 cm long. It grows in subalpine woodlands, , Australia: Tasmania. In Iturraran is located in area 4.
Anthodites in a cave in Virginia, USA.
"Cave formations" in caves are technically called speleothem. Most speleothem is composed of travertine, a crystalline-textured chemical sedimentary rock composed of calcite (CaCO3). Travertine forms in most caves and at some springs by precipitation of crystals from water. Travertine speleothem occurs in a wide variety of forms. The most common variety of travertine speleothem is dripstone, which forms by the action of dripping water. The second-most common type of travertine speleothem is flowstone, which forms by precipitation of crystals from relatively thin films of flowing water. Flowstone typically has the appearance of a frozen waterfalls.
Shown above are anthodites, a scarce variety of speleothem that was first described from this very cave - Skyline Caverns in Virginia. Anthodites are radiating clusters of quill-like to slightly vermiform structures. Individual anthodite quills are hollow. Mineral analysis by White (1994) has shown that they are composed of aragonite (CaCO3), which is a polymorph of calcite. Some have recrystallized to calcite. The anthodites of Skyline Caverns were originally in sealed chambers in a mostly-sediment filled cave passage. During tourist trail construction, workers dug out sediments and encountered small chambers having common anthodites. They were subsequently named and described in the literature in 1949. The anthodite-bearing chambers were unusual in having near-vacuum conditions. Upon opening one chamber, a worker's hat was sucked in by the low air pressure.
When pure calcium carbonate, anthodites are white-colored. The yellows and reddish-browns seen above are from iron oxides. The slightly green coloration is from algae that grows in tourist trail lighting.
Skyline Caverns is developed in structurally tilted carbonates (mixed dolostones and limestones) of the Rockdale Run Formation (Beekmantown Group, Lower Ordovician).
Locality: Skyline Caverns, Front Royal, central Warren County, northern Virginia, USA
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Reference cited:
White (1994) - The anthodites from Skyline Caverns, Virginia: the type locality. National Speleological Society Bulletin (Journal of Caves and Karst Studies) 56: 23-26.
"Het Dorp" ("Het Dorp" Dutch Wikipedia page), a residential community for people with a severe physical disability or multiple disabilities. The goal of this community is for those people to be able to live as independent as possible. The community was opened in 1962, after the huge "Open Het Dorp" fundraiser event. The village was celebrating its 50th anniversary in 2012 and Hack42 Hackerspace Arnhem was approached some time ago and was asked to host one of the werkplaatsen activities on site. We came up with a battle-plan and joined the ranks of course.
Name: Black Dragon (Draco rex)
Size : length until 75 meters
Height: until 22 meters
Wingspans: until 150 meters
Weight : until between 20 and 35 tons
Frequency: Quite common
Sight: Excellant
Smell: Excellant
Hearing: Excellant
Location: Volcanoes, Mountains, Deserts, Marshes, Swamps, Jungles and Plains
Alignment: Lawful Good
Enemies: Anything evil
Information:
Black dragons (aka "common dragons", "dragons rex" or "royal dragon") are the second most powerful of the dragons of Fantasia, and are friends to the good creatures. They are the noble and honorable dragons. They consider themselves the protectors of all life, and in many ways they are. They are probably the most social species of dragon, and often swim and play together in groups. At first glance, the black Dragon appears very similar to the green Dragon. The wings are more curved, and the black has two talons on its wings rather than the single talon of most dragons. They have eight cheek spikes, the large frills, the eagle's talons, long and impressive curved horns, and two forehead spines. They have the powerful bite of over 3,000 pounds. They roar like the gigantic dragon.
Black dragons lay their eggs, who require no special conditions for incubation like those of most dragons, in the some places. Upon hatching, the wyrmlings are raised, taught, and protected by their parents. A newhatched Black whelps appears brown with a tinge of grey, and the scales will gradually shift to black as it matures. They are in general raised, taught, and protected by their parents.
Naturally, the black dragons likes the mortal races, especially those that has lost their parents during the childhood, but there are a few exceptions. Many black dragons dislikes the evil humanoids, due of the fact to these creatures calls them as "Huge lizards" and "Angry beast", as well, "Featherless bird".
These dragons have the polymorph spell who they can change into the animals and they can speak with the animals. When taking humanoid form black dragons, most often choose human or elf form. Pearls and the gems are their foods of choice.
Notable black dragons:
Apakoh: A young green-eyes dragoness who breath the earth and the poison.
Dolan: A twisted Apakoh's brother.
Les Sources Occultes 008/999
Un film de Laurent Courau, d'après un scénario de Thierry Ehrmann.
Un hommage à Norman Spinrad
Comédienne : Élora Bessey
Effets pyrotechniques : Thierry Loir
Images, textes et montage : Laurent Courau
Photographe de plateau : Kurt Ehrmann
Bande-son originale : Cheerleader 69
Remerciements à Jolan Bessey, Carine Dubois, Rodolphe Bessey et Vincent Kindred Véhixe.
© Les Amis de l'Esprit de la Salamandre 1999
Entre effroi et merveilles, une zone mouvante aux portes du futur et des enfers...
Les Sources Occultes vous entraînent au coeur d'un univers polymorphe dont les clés et les motifs se révéleront au fur et à mesure des épisodes de cette série de fictions. En attendant un final apocalyptique, au sens premier du terme, qui révélera la structure générale sous la forme d'un long-métrage...
Les Sources Occultes offrent aussi une nouvelle porte d'entrée dans le labyrinthe multidimensionnel de la Demeure du Chaos à celles et ceux qui postulent à notre casting, une occasion unique de pénétrer les arcanes de l'esprit de la Salamandre.
Secrets revealed of the Abode of Chaos (112 pages, adult only) >>>
Botryoidal marcasite from Peru. (field of view ~4.8 centimeters across)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 6000 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The sulfide minerals contain one or more sulfide anions (S-2). The sulfides are usually considered together with the arsenide minerals, the sulfarsenide minerals, and the telluride minerals. Many sulfides are economically significant, as they occur commonly in ores. The metals that combine with S-2 are mainly Fe, Cu, Ni, Ag, etc. Most sulfides have a metallic luster, are moderately soft, and are noticeably heavy for their size. These minerals will not form in the presence of free oxygen. Under an oxygen-rich atmosphere, sulfide minerals tend to chemically weather to various oxide and hydroxide minerals.
Marcasite is an iron sulfide mineral, FeS2, which is the same chemical formula as pyrite. Different minerals having the same chemical formula are called polymorphs. Other examples of polymorphs are graphite-diamond (both C) and calcite-aragonite (both CaCO3). Pyrite and marcasite both have a metallic luster, a brassy gold color, and a dark gray to black streak. They both lack cleavage, and they have the same hardness (H = 6 to 6.5). Marcasite tends to have a paler brass color than pyrite. Some marcasites are almost silvery-colored.
How does one visually distinguish marcasite from pyrite? Apart from color, marcasite crystals are typically plates, or sharp & pointed, and marcasite tends to twin, resulting in cockscomb masses (www.mindat.org/photo-408969.html). Marcasite also more readily breaks down into whitish powder (FeSO4).
Pyrite can convert to marcasite naturally, and vice versa. Pyrite concretions may have preserved needle-shaped crystals of marcasite, but the marcasite is gone. X-ray analysis may be needed to determine which polymorph is present.
Locality: Julcani Mining District, Angaraes Province, Huancavelica Department, southern Peru
-----------------
Photo gallery of marcasite:
Octahedral diamond crystal (public display, Field Museum of Natural History, Chicago, Illinois, USA)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5200 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
Igneous rocks form by the cooling & crystallization of hot, molten rock (magma & lava). If this happens at or near the land surface, or on the seafloor, they are extrusive igneous rocks. If this happens deep underground, they are intrusive igneous rocks. Most igneous rocks have a crystalline texture, but some are clastic, vesicular, frothy, or glassy.
Obsidian is readily identifiable. It is a glassy-textured, extrusive igneous rock. Obsidian is natural glass - it lacks crystals, and therefore lacks minerals. Obsidian is typically black in color, but most obsidians have a felsic to intermediate chemistry. Felsic igneous rocks are generally light-colored, so a felsic obsidian seems a paradox. Mafic obsidians are scarce, but they are also black and glassy.
Obsidian is an uncommon rock, but can be examined at several famous localities in America, such as Obsidian Cliff at the Yellowstone Hotspot (northwestern Wyoming, USA) and Big Obsidian Flow at the Newberry Volcano (central Oregon, USA).
Obsidian is moderately hard and has a conchoidal fracture (smooth and curved fracture surface), with sharp broken edges. Freshly-broken obsidian has the sharpest edges of any material known, natural or man-made (as seen under a scanning electron microscope).
Obsidian forms two ways: 1) very rapid cooling of lava, which prevents the formation of crystals; 2) cooling of high-viscosity lava, which prevents easy movement of atoms to form crystals. An example of obsidian that formed the first way is along the margins of basaltic lava flows at Kilaeua Volcano (Hawaii Hotspot, central Pacific Ocean). The obsidian sample seen here formed the second way.
Obsidian is unstable on geologic time scales - it will slowly convert to material that is not obsidian. A partially-converted obsidian is a distinctive rock called snowflake obsidian. The black portions of the rock seen here are rhyolitic obsidian (glass). The white patches ("snowflakes") are devitrification spots composed of cristobalite (SiO2, a polymorph of quartz).
Blijdorp, Rotterdam, Zoo
Butterflies are part of the class of Insects in the order Lepidoptera. Moths are also included in this order. Adults butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). Other families within Lepidoptera are referred to as moths. Butterfly fossils date to the mid Eocene epoch, 40–50 million years ago.[1]
Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have and parasitic relationships with organisms including protozoans, flies, ants, other invertebrates, and vertebrates. [2] [3] Some species are pests because in their larval stages they can damage domestic crops or trees; however, some species are agents of pollination of some plants, and caterpillars of a few butterflies (e.g., Harvesters) eat harmful insects. Culturally, butterflies are a popular motif in the visual and literary arts.
As borboletas são insectos da ordem Lepidoptera classificados nas super-famílias Hesperioidea e Papilionoidea, que constituem o grupo informal Rhopalocera.
As borboletas têm dois pares de asas membranosas cobertas de escamas e peças bucais adaptadas a sucção. Distinguem-se das traças (mariposas) pelas antenas rectilíneas que terminam numa bola, pelos hábitos de vida diurnos, pela metamorfose que decorre dentro de uma crisálida rígida e pelo abdómen fino e alongado. Quando em repouso, as borboletas dobram as suas asas para cima.
As borboletas são importantes polinizadores de diversas espécies de plantas.
O ciclo de vida das borboletas engloba as seguintes etapas:
1) ovo→ fase pré-larval
2) larva→ chamada também de lagarta ou taturana,
3) pupa→ que se desenvolve dentro da crisálida (ou casulo)
4) imago→ fase adulta
_______________________
A butterfly is any of several groups of mainly day-flying insects of the order Lepidoptera, the butterflies and moths. Like other holometabolous insects, butterflies' life cycle consists of four parts, egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.
Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as agents of pollination. The caterpillars of some butterflies eat harmful insects. A few species are pests because in their larval stages they can damage domestic crops or trees. Culturally, butterflies are a popular motif in the visual and literary arts.
Fluorescing diamonds from Russia (probably Siberia). (crystals are ~0.7 to 0.9 millimeters in size)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are about 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known. Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon occurs principally in its native state as graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. A scarce polymorph of carbon is diamond. The physical properties of diamond and graphite couldn’t be more different, considering they have the same chemistry. Diamond has a nonmetallic, adamantine luster, typically occurs in cubic or octahedral (double-pyramid) crystals, or subspherical to irregularly-shaped masses, and is extremely hard (H≡10). Diamonds can be almost any color, but are typically clearish, grayish, or yellowish. Many diamonds are noticeably fluorescent under black light (ultraviolet light), but the color and intensity of fluorescence varies. Some diamonds are phosphorescent - under certain conditions, they glow for a short interval on their own.
Very rarely, diamond is a rock-forming mineral (see diamondite - www.flickr.com/photos/jsjgeology/14618393527).
The Russian diamonds shown above are clear/colorless under white light. This photo was taken under ultraviolet (UV) light - "black light", which makes the diamonds fluoresce various shades of blues and magentas and other colors.
Why do some minerals fluoresce under UV light? When short-wavelength UV radiation, long-wavelength UV radiation, or x-rays bombard atoms, electron excitation occurs. But the electrons do not remain in an energetically excited state. They quickly give off energy and resume their normal energy levels. If the electron energy release is in the visible spectrum of light, a mineral glows, or fluoresces.
Aims: To investigate the endocrine-metabolic changes in postmenopausal women with MetS and examine relationship with the polymorphisms of eNOS-G894T, p22(phox)-930 A/G, CETP TaqIB, ESR1 (PvuII and XbaI) genes.
Methods: 280 postmenopausal apparently healthy women aged between 60 and 80 years were classified into non-MetS (212) and MetS (68). Clinical, anthropometric and endocrine-metabolic parameters were measured. The single nucleotide polymorphisms were determined and tested for interacting with these parameters.
Results: The weight, waist circumference, blood pressure, WBC, triglycerides, LDL-C, TG/HDL-C ratio, apolipoprotein (apo)B, apoB/apoA-I ratio, fasting glucose, insulin, HOMA, uric acid, were higher and HDL-C was lower in MetS group thus fulfilled the criteria for the MetS. The significant higher levels of E2, T3, GHBP, PTH and lower levels of cortisol, SHBG, FSH, LH, IGFBP1, cortisol/DHEA ratio were also detected.
Genetic association studies showed that presence of A allele p22phoxA/G (OR=1.62; CI=1.08-2.42) and heterozygote AG-XbaI(ESR1) (OR=2.29; CI= 1.19-4.37) indicated a significant risk for MetS. The binary logistic regression (MetS vs Controls) showed an interaction of G894TeNOS polymorphism with MetS (OR>2.5; 95% CI =1.47-4.90) that associated with SBP, TG, apoB, uric acid, ASTGOT (OR>1) and HDL-C (OR<1). CETP TaqIB polymorphism associated with MetS (OR1. ESR1 PvuII (T/C) associated with MetS (OR between 1.59-8.60) in presence of LDL-C, TG/HDL-C ratio, P with OD>1 and HDL-C, androstenedione, SHBG, FAI with OR<1.
In MetS group the carriers of -TT (eNOS-G894T) genotype had higher levels of blood pressure, glucose; -GG (p22phox A/G) had higher levels of BMI, apoB/apoA ratio; -B1B2 (CETP B1/B2) had higher levels of SBP, glucose, cholesterol, HDL-C, CRP, GHBP and lower levels of TSH; -CC (PvuII) and GG (XbaI) ESR1 genotypes showed higher levels of glucose.
Conclusions: These results sustain an interaction between the studied polymorphisms and the endocrine-metabolic changes in MetS pathogenesis. Our results sustain an interaction between the studied polymorphisms and their phenotypes in conferring a higher susceptibility to the endocrine-metabolic changes involved in pathogenesis of MetS. The elevated values of TG/HDL-C and apoB/apoA ratios could be risk indicators for calculation cardiovascular risk in of MetS.
Author(s) Details
Olga Ianas
“C.I. Parhon” National Institute of Endocrinology, Bd. Aviatorilor 34-38, S1, 011863, Bucharest, Romania.
Dana Manda
“C.I. Parhon” National Institute of Endocrinology, Bd. Aviatorilor 34-38, S1, 011863, Bucharest, Romania.
Sabina Oros
“C.I. Parhon” National Institute of Endocrinology, Bd. Aviatorilor 34-38, S1, 011863, Bucharest, Romania.
“Carol Davila” University of Medicine and Farmacy, Str. Dionisie Lupu 37, S2, 020021, Bucharest, Romania.
Oana Popa
“C.I. Parhon” National Institute of Endocrinology, Bd. Aviatorilor 34-38, S1, 011863, Bucharest, Romania.
Anca Sima
“Nicolae Simionescu” Institute of Cellular Biology and Pathology, Str. B.P. Hasdeu 8, S5, 050568, Bucharest, Romania.
Read full article: bp.bookpi.org/index.php/bpi/catalog/view/53/533/462-1
View More: www.youtube.com/watch?v=YHyE0LsOj5c
Ok, this is my new creation, the little brother of the real Chopsticks letsmakerobots.com/node/26107 build by OddBot. There is not much to say just watch the video. It's build with chopsticks wooden spatulas, 8 micro servos, Arduino Nano as the brain and hotglue. If you want to know how to build this one then please see here: letsmakerobots.com/node/29708
Les Sources Occultes 008/999
Un film de Laurent Courau, d'après un scénario de Thierry Ehrmann.
Un hommage à Norman Spinrad
Comédienne : Élora Bessey
Effets pyrotechniques : Thierry Loir
Images, textes et montage : Laurent Courau
Photographe de plateau : Kurt Ehrmann
Bande-son originale : Cheerleader 69
Remerciements à Jolan Bessey, Carine Dubois, Rodolphe Bessey et Vincent Kindred Véhixe.
© Les Amis de l'Esprit de la Salamandre 1999
Entre effroi et merveilles, une zone mouvante aux portes du futur et des enfers...
Les Sources Occultes vous entraînent au coeur d'un univers polymorphe dont les clés et les motifs se révéleront au fur et à mesure des épisodes de cette série de fictions. En attendant un final apocalyptique, au sens premier du terme, qui révélera la structure générale sous la forme d'un long-métrage...
Les Sources Occultes offrent aussi une nouvelle porte d'entrée dans le labyrinthe multidimensionnel de la Demeure du Chaos à celles et ceux qui postulent à notre casting, une occasion unique de pénétrer les arcanes de l'esprit de la Salamandre.
Secrets revealed of the Abode of Chaos (112 pages, adult only) >>>
Best viewed @ large size
Gentianaceae - Edges of cultivated land, roadsides, forest margins; 2100-4200 m in S and SE Xizang Province (Tibet); Bhutan, Nepal, Sikkim
Tibetan Gentian, xi zang qin jiao
Shown: Detail of foliage and terminal inflorescence in bud
"This is a cosmopolitan genus, occurring in alpine habitats of temperate regions of Asia, Europe and the Americas. Some species also occur in northwest Africa, eastern Australia and New Zealand. They consist of annual, biennial and perennial plants. Some are evergreen, others are not.
"The name is a tribute to Gentius, an Illyrian king who was thought to have found out that the herbs had tonic properties." (Wikipedia)
"Gentians have opposite leaves that are sometimes arranged in a basal rosette, and trumpet-shaped flowers that are usually deep blue or azure, but may vary from white, creamy and yellow to red. Many species also show considerable polymorphism with respect to flower color. Typically, blue-flowered species predominate in the Northern Hemisphere, with red-flowered species dominant in the Andes (where bird pollination is probably more heavily favored by natural selection). White-flowered species are scattered throughout the range of the genus but dominate in New Zealand. All gentian species have terminal tubular flowers and most are pentamerous, i.e. with 5 corolla lobes (petals), and 5 sepals, but 4-7 in some species. The style is rather short or absent. The corolla shows folds (= plicae) between the lobes. The ovary is mostly sessile and has nectary glands." (Wikipedia)
In traditional Chinese medicine, G. tibetica is used to treat rheumatoid arthritis and to calm nervousness.
Morphological description of G. tibetica:
www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=2...
My complete set of images of G. tibetica:
www.flickr.com/photos/jim-sf/sets/72157628774992609/
Photographed in U.C. Botanical Garden at Berkeley - Berkeley, California
TÍTULO DEL PANEL: INVASORES
SUBTÍTULO DEL PANEL: ¿Cómo afectan las especies invasoras a los ecosistemas en los que se instalan?
NOMBRE DEL CENTRO DE ENSEÑANZA Y LOCALIDAD: IES “Escultor Daniel” Logroño
NOMBRE DEL PROFESOR: Antonio Guillén
NOMBRE DE LOS ALUMNOS PARTICIPANTES:
Rubén García Martínez
Diego Jadraque Corral
Javier Villaescusa Arenas
Josué Solórzano Orio
Introducción
En los últimos años, numerosos ecosistemas terrestres y acuáticos están sufriendo graves alteraciones al haberse introducido en ellos especies extrañas que compiten con las originarias en condiciones más favorables, generando importantes desequilibrios que han llevado al borde de la extinción a algunos animales y plantas antes comunes.
Objetivos
Conocer algunos ejemplos de plantas y animales que al incorporarse en los ecosistemas de nuestra comunidad están produciendo o pueden producir daños.
Estudiar qué papel desempeñan las especies invasoras en los ecosistemas a los que se incorporan.
Valorar el daño que pueden causar las especies invasoras sobre otras especies con las que compiten y sobre los ecosistemas en su conjunto.
Metodología
A partir de diferentes estudios, del Real Decreto por el que se regula el catálogo español de especies exóticas invasoras y de nuestras propias observaciones y experiencia, hemos realizado un pequeño trabajo de investigación seleccionando algunas de las especies invasoras de animales acuáticos y terrestres y plantas que más impacto están causando en la naturaleza dentro de La Rioja, hemos tratado de conocer cómo se distribuyen, analizando el daño que causan y estudiado sobre qué otras especies están influyendo directa o indirectamente.
Resultados
Hemos Se ha elaborado un pequeño catálogo con las especies invasoras que más afectan o pueden afectar a los ecosistemas de La Rioja, valorando el daño que pueden causar y de qué manera se podría evitar.
Plantas:
- Ailanto, Ailanthus altissima: coloniza taludes y cunetas compitiendo con el olmo.
- Viscosa, Inula viscosa: invade bordes de caminos, cultivos y praderas.
- Vinagrera, Oxalis pes-capreae: potencialmente peligrosa por su rápida expansión.
Invertebrados no artrópodos:
- Mejillón cebra, Dreissena polymorpha: compite con bivalvos autóctonos que corren peligro de extinción.
- Cangrejo rojo, Procambarus clarkii: transmite la afanomicosis y ha colocado al borde de la extinción al cangrejo de río autóctono.
Peces:
- Alburno, Alburnus alburnus, lucio, Exos lucius, percasol, Lepomis gibbosus, blak-bass, Micropterus salmoides y Siluro, Silurus glanis, entre otros, han alterado profundamente muchos de los ecosistemas fluviales y hecho desaparecer algunas especies de ecosistemas fluviales ríos como el Ebro.
Reptiles:
- Galápago de Florida, Trachemys scrypta: compite con galápago europeo y puede hacerlo desaparecer.
Mamíferos:
- Visón americano, Mustela vison: compite con el visón europeo y pone en peligro lo está colocando al borde de la extinción a esta especie.
Conclusiones
De todos los ecosistemas afectados por especies invasoras el fluvial es el más deteriorado por la variedad de especies introducidas y las consecuencias que ello ha tenido, fundamentalmente la desaparición de la mayoría de especies autóctonas.
Las especies invasoras compiten con ventaja con las autóctonas por no verse afectadas generalmente por sus enfermedades y ser transmisoras de otras que sí afectan a las autóctonas.
La desaparición de una especie como consecuencia de la presencia de otra invasora desequilibra los ecosistemas y en ocasiones puede hacer peligrar a muchas otras.
As borboletas são insectos da ordem Lepidoptera classificados nas super-famílias Hesperioidea e Papilionoidea, que constituem o grupo informal Rhopalocera.
As borboletas têm dois pares de asas membranosas cobertas de escamas e peças bucais adaptadas a sucção. Distinguem-se das traças (mariposas) pelas antenas rectilíneas que terminam numa bola, pelos hábitos de vida diurnos, pela metamorfose que decorre dentro de uma crisálida rígida e pelo abdómen fino e alongado. Quando em repouso, as borboletas dobram as suas asas para cima.
As borboletas são importantes polinizadores de diversas espécies de plantas.
O ciclo de vida das borboletas engloba as seguintes etapas:
1) ovo→ fase pré-larval
2) larva→ chamada também de lagarta ou taturana,
3) pupa→ que se desenvolve dentro da crisálida (ou casulo)
4) imago→ fase adulta
_______________________
A butterfly is any of several groups of mainly day-flying insects of the order Lepidoptera, the butterflies and moths. Like other holometabolous insects, butterflies' life cycle consists of four parts, egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.
Butterflies exhibit polymorphism, mimicry and aposematism. Some, like the Monarch, will migrate over long distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as agents of pollination. The caterpillars of some butterflies eat harmful insects. A few species are pests because in their larval stages they can damage domestic crops or trees. Culturally, butterflies are a popular motif in the visual and literary arts.