View allAll Photos Tagged Angiosperms
Western Nebraska. These plants in the Great Plains are generally remnants of the hemp-growing industry from the last century. They represent a non-psychoactive strain of the species that was grown for their fibers used mainly for manufacturing purposes.
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and Cenozoic, or modern, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall. The explosion of angiosperm diversity has gone hand in hand with the proliferation of insect, birds, and other animals that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
PLANT - The ultimate visual reference to plants and flowers of the world JANET MARINELLI
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Eagle View from the top of Mt. Kitanglad of CdeO Macajalar Bay to Mt. Malindang, Mis. Occ./ W. Antonio Kaamiño added Photos of DBP-CdeO financed area projects
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Mindanao Tourist Destinations created an event.
June 28, 2012 ·
Let us help promote Mindanao Tourism
July 31, 2012
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En biologie, chez les plantes à fleurs (angiospermes), la fleur constitue l'organe de la reproduction sexuée et l'ensemble des « enveloppes » qui l'entourent. Après la pollinisation, la fleur est fécondée et se transforme en fruit contenant les graines. Les fleurs peuvent être solitaires, mais elles sont le plus souvent regroupées en inflorescences.
Très tôt, les fleurs ont attiré l’attention de l’homme, qui les utilise et les cultive pour la parure (couronne de fleurs), pour l’ornementation intérieure (fleurs coupées, bouquets, ikebana) et extérieure (jardins, plates-bandes, etc.) ainsi que pour leurs odeurs et pigments. Les fleurs ont souvent inspiré les artistes, peintres, poètes, sculpteurs et décorateurs. La culture des fleurs est la floriculture, une branche de l'horticulture.
La plupart des fleurs sont hermaphrodites, c'est-à-dire qu'elles ont à la fois des organes reproducteurs mâles et femelles : elles ont un pistil et des étamines. Les étamines sont la partie mâle (qui libère du pollen), et le pistil la partie femelle (qui reçoit le pollen). Certaines plantes comme le pistachier ou le kiwi ont des fleurs qui ne sont pas hermaphrodites : elles sont soit mâles, soit femelles, les scientifiques parlent de fleurs gonochoriques. D'autres plantes comme l'avocatier ont des fleurs qui sont successivement mâles et femelles, on parle alors d'hermaphrodisme successif.
La fleur hermaphrodite est constituée de pièces florales insérées sur un réceptacle floral. Lorsque la fleur est complète, elle comprend quatre verticilles de pièces florales. De l'extérieur vers l'intérieur, on rencontre :
le calice, formé par l'ensemble des sépales ;
la corolle, formée par l'ensemble des pétales ;
l'androcée, c'est-à-dire l'ensemble des étamines (partie mâle), qui produit le pollen ;
le gynécée ou pistil, formé par l'ensemble des carpelles (partie femelle).
Calice et corolle forment le périanthe, enveloppe stérile, qui joue un rôle protecteur pour les pièces fertiles, et attractif pour les animaux pollinisateurs.
Ce plan théorique de la fleur, que l'on trouve typiquement chez le bouton d'or (Renonculacées), est sujet à de nombreuses variations. On rencontre par exemple des fleurs sans pétales, dites « apétales ». Une fleur mixte est une fleur qui possède à la fois étamines et pistil.
« La fleur double est celle dont quelqu'une des parties est multipliée au-delà de son nombre naturel, mais sans que cette multiplication nuise à la fécondation. Les fleurs se doublent rarement par le calice, presque jamais par les étamines. Leur multiplication la plus commune se fait par la corolle. Les exemples les plus fréquents sont dans les fleurs polypétales, comme œillets, anémones, renoncules ; les fleurs monopétales doublent moins communément. Cependant on voit assez souvent des campanules, des primevères auricules, et surtout des jacinthes à fleur double. Ce mot de fleur double ne marque pas dans le nombre des pétales une simple duplication, mais une multiplication quelconque. Soit que le nombre des pétales devienne double, triple, quadruple, etc., tant qu'ils ne multiplient pas au point d'étouffer la fructification, la fleur garde toujours le nom de fleur double ; mais, lorsque les pétales trop multipliés font disparaître les étamines et avorter le germe, alors la fleur perd le nom de fleur double et prend celui de fleur pleine. »
Muscari sp. - grape hyacinths in Ohio, USA (1 May 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Classification: Plantae, Angiospermophyta, Asparagales, Asparagaceae
Locality: cultivar in Newark, Ohio, USA
----------------
More info. at:
Narcissus sp. - daffodil in Ohio, USA (early April 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Daffodils are widespread and have been extensively cultivated, but they are native to southwestern & southern Europe and northern Africa.
Classification: Plantae, Angiospermophyta, Asparagales, Amaryllidaceae
Locality: cultivar in Newark, Ohio, USA
----------------
More info. at:
Janet is posing next to a giant milkweed, not the typical plant we see in temperate North America. This plant was growing in SW Puerto Rico in a region that is a UNESCO Biosphere Reserve. UNESCO put aside this region because of its world-significant plants.
Woody milkweeds are a rarity, but in island ecosystems, many plant families that are normally herbaceous have evolved a woody habit for various reasons. This milkweed is one such example.
Please join me in my blog “Botany Without Borders: Where Design Meets Science”
En biologie, chez les plantes à fleurs (angiospermes), la fleur constitue l'organe de la reproduction sexuée et l'ensemble des « enveloppes » qui l'entourent. Après la pollinisation, la fleur est fécondée et se transforme en fruit contenant les graines. Les fleurs peuvent être solitaires, mais elles sont le plus souvent regroupées en inflorescences.
Très tôt, les fleurs ont attiré l’attention de l’homme, qui les utilise et les cultive pour la parure (couronne de fleurs), pour l’ornementation intérieure (fleurs coupées, bouquets, ikebana) et extérieure (jardins, plates-bandes, etc.) ainsi que pour leurs odeurs et pigments. Les fleurs ont souvent inspiré les artistes, peintres, poètes, sculpteurs et décorateurs. La culture des fleurs est la floriculture, une branche de l'horticulture.
La plupart des fleurs sont hermaphrodites, c'est-à-dire qu'elles ont à la fois des organes reproducteurs mâles et femelles : elles ont un pistil et des étamines. Les étamines sont la partie mâle (qui libère du pollen), et le pistil la partie femelle (qui reçoit le pollen). Certaines plantes comme le pistachier ou le kiwi ont des fleurs qui ne sont pas hermaphrodites : elles sont soit mâles, soit femelles, les scientifiques parlent de fleurs gonochoriques. D'autres plantes comme l'avocatier ont des fleurs qui sont successivement mâles et femelles, on parle alors d'hermaphrodisme successif.
La fleur hermaphrodite est constituée de pièces florales insérées sur un réceptacle floral. Lorsque la fleur est complète, elle comprend quatre verticilles de pièces florales. De l'extérieur vers l'intérieur, on rencontre :
le calice, formé par l'ensemble des sépales ;
la corolle, formée par l'ensemble des pétales ;
l'androcée, c'est-à-dire l'ensemble des étamines (partie mâle), qui produit le pollen ;
le gynécée ou pistil, formé par l'ensemble des carpelles (partie femelle).
Calice et corolle forment le périanthe, enveloppe stérile, qui joue un rôle protecteur pour les pièces fertiles, et attractif pour les animaux pollinisateurs.
Ce plan théorique de la fleur, que l'on trouve typiquement chez le bouton d'or (Renonculacées), est sujet à de nombreuses variations. On rencontre par exemple des fleurs sans pétales, dites « apétales ». Une fleur mixte est une fleur qui possède à la fois étamines et pistil.
« La fleur double est celle dont quelqu'une des parties est multipliée au-delà de son nombre naturel, mais sans que cette multiplication nuise à la fécondation. Les fleurs se doublent rarement par le calice, presque jamais par les étamines. Leur multiplication la plus commune se fait par la corolle. Les exemples les plus fréquents sont dans les fleurs polypétales, comme œillets, anémones, renoncules ; les fleurs monopétales doublent moins communément. Cependant on voit assez souvent des campanules, des primevères auricules, et surtout des jacinthes à fleur double. Ce mot de fleur double ne marque pas dans le nombre des pétales une simple duplication, mais une multiplication quelconque. Soit que le nombre des pétales devienne double, triple, quadruple, etc., tant qu'ils ne multiplient pas au point d'étouffer la fructification, la fleur garde toujours le nom de fleur double ; mais, lorsque les pétales trop multipliés font disparaître les étamines et avorter le germe, alors la fleur perd le nom de fleur double et prend celui de fleur pleine. »
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Bindweed and Morning Glory
Kingdom : Plantae
(unranked) : Angiosperms
(unranked) : Eudicots
(unranked) : Asterids
Order : Solanales
Family : Convolvulaceae
Genus : Convolvulus
Clematis sp. in Ohio, USA (1 June 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Classification: Plantae, Angiospermophyta, Ranunculales, Ranunculaceae
Locality: cultivar in Celina, Ohio, USA
----------------
More info. at:
Paeonia sp. in Ohio, USA (1 June 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Classification: Plantae, Angiospermophyta, Saxifragales, Paeoniaceae
Locality: cultivar in Celina, Ohio, USA
----------------
More info. at:
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and Cenozoic, or modern, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall. The explosion of angiosperm diversity has gone hand in hand with the proliferation of insect, birds, and other animals that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
PLANT - The ultimate visual reference to plants and flowers of the world JANET MARINELLI
IMAGES: - MINDANAO TOURIST'S DESTINATIONS and Angelique Ross Kaamiño/TravelEscapade,TRAVEL/Leisure Cebu/CdO/Butuan
PHOTO INFO-STORY: -wilfredosrb
Mindanao Tourist Destinations created an event.
June 28, 2012 ·
Help us promote Mindanao Tourism
July 31, 2012
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Dame's Rocket, Hesperis matronalis Clear Brook, Virginia, VA; plants; flower; wildflower, angiosperm, wildflowers, wild flower, angiosperms; {Invasive Species}, fungi; mushroom, fungi, fungus, macrofungi, polypore, bracket fungus
A combination of light, temperature, and moisture conditions encourage transformation of the Amaryllis bud from dormancy into a flower. The plant makes "decisions" that force the opening of the bud, based on data that arrives from the external environment. Many but not all of the plant's cells are involved in this decision-making, but once they have responded, a series of activities are put into play that result in the opening of this flower.
Aquilegia canadensis Linnaeus, 1753 - eastern red columbine in Wisconsin, USA (3 June 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Classification: Plantae, Angiospermophyta, Ranunculales, Ranunculaceae
Locality: trailside, Natural Bridge State Park, northeast of Leland, Wisconsin, USA
----------------
More info. at:
Narcissus sp. - daffodil in Ohio, USA (early April 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Daffodils are widespread and have been extensively cultivated, but they are native to southwestern & southern Europe and northern Africa.
Classification: Plantae, Angiospermophyta, Asparagales, Amaryllidaceae
Locality: cultivar in Newark, Ohio, USA
----------------
More info. at:
Ipomoea hederacea Jacquin, 1787 - ivy-leaved morning glory in Florida, USA. (January 2016)
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
The ivy-leaved morning glory shown above is not native to Florida or North America - its natural distribution is in tropical areas of the New World.
Classification: Plantae, Angiospermophyta, Solanales, Convolvulaceae
Locality: Sanibel Lighthouse-Fishing Pier area, far-eastern Sanibel Island, southwestern Florida, USA
--------------------
More info. at:
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and Cenozoic, or modern, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall. The explosion of angiosperm diversity has gone hand in hand with the proliferation of insect, birds, and other animals that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
PLANT - The ultimate visual reference to plants and flowers of the world JANET MARINELLI
Mindanao Tourist Destinations
Local/Travel Website and Angelique Ross Kaamiño/TravelEscapade TRAVEL/Leisure Cebu/CdO/Butuanon
Featured Link-
Eagle View from the top of Mt. Kitanglad of CdeO Macajalar Bay to Mt. Malindang, Mis. Occ./ W. Antonio Kaamiño added Photos of DBP-CdeO financed area projects
PHOTO INFO-STORY: -wilfredosrb
Mindanao Tourist Destinations created an event.
June 28, 2012 ·
Let us help promote Mindanao Tourism
July 31, 2012
PHOTO INFO-STORY: - wilfredosrb
Narcissus sp. - daffodils in Ohio, USA (early April 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Daffodils are widespread and have been extensively cultivated, but they are native to southwestern & southern Europe and northern Africa.
Classification: Plantae, Angiospermophyta, Asparagales, Amaryllidaceae
Locality: cultivar in Newark, Ohio, USA
----------------
More info. at:
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and Cenozoic, or modern, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall. The explosion of angiosperm diversity has gone hand in hand with the proliferation of insect, birds, and other animals that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
PLANT - The ultimate visual reference to plants and flowers of the world JANET MARINELLI
IMAGES: Mindanao Tourist Destinations Local/Travel Website and Angelique Ross Kaamiño/TravelEscapade TRAVEL Leisure Cebu/CdO/Butuan
Featured Link- Mt. Kitanglad Range Natural Park Community and Photo Travel to Dulang-Dulang Forest
PHOTO INFO-STORY: -wilfredosrb
Mindanao Tourist Destinations created an event.
June 28, 2012 ·
Help us promote Mindanao Tourism
July 31, 2012
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This is a Poa (Bluegrass) leaf in cross section. It produces buliform cells on the abaxial surface which function to curl the leaf in times of water stress.
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and CENOZOIC, or MODERN, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall.
The explosion of angiosperm diversity has gone hand in hand with the proliferation of INSECTS, BIRDS, and OTHER ANIMALS that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
THE ULTIMATE VISUAL REFERENCE TO PLANTS AND FLOWERS OF THE WORLD - Janet Marinelli, Ed-in-Chief
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Calo-Navarro Family Clan from the 1st Atega Generation HOUSE circa 1849
Geni.The Kaamiño Family Tree.com/Eleuterio Atega-Basilisa Azura/Eugenio Sanchez-Isabel Flores Merger 2009
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and Cenozoic, or modern, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall. The explosion of angiosperm diversity has gone hand in hand with the proliferation of insect, birds, and other animals that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
PLANT - The ultimate visual reference to plants and flowers of the world JANET MARINELLI
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PHOTO INFO-STORY: - wilfredosrb
Kingdom=Plantae
unranked=Angiosperms
unranked=Eudicots
unranked=Rosids
Order=Fabales
Family=Fabaceae
Subfamily=Faboideae
Tribe=Mirbelieae
Genus=Daviesia?
THE AGE OF FLOWERING PLANTS
ANGIOSPERM means "seed borne in vessel," while GYMNOSPERM means "naked seed," a reference to the lack of protective structure enveloping the seed. One reason that flowering plants were able to diversify so dramatically and spread during the Cretaceous and Cenozoic, or modern, the era was the evolution of new structures and tissues such as the carpel, a womb-like vessel that encloses angiosperm seeds and endosperm, a placenta-like tissue that nourishes the young plant as it develop within the seed, Today, angiosperm dominate terrestrial life on the planet. At an estimated 422,000 species, they compose by far the largest group of plants. They grow in greater range of environments, exhibits a wider range of growth habits, and display more variation in form than any living group of plants. In size, angiosperm range from tiny duckweed to eucaplytuses more than 330 ft (100 m) tall. The explosion of angiosperm diversity has gone hand in hand with the proliferation of insect, birds, and other animals that pollinate their flowers, disperse their fruits and seeds, and eat their leaves.
PLANT - The ultimate visual reference to plants and flowers of the world JANET MARINELLI
IMAGES: Mindanao Tourist Destinations Local/Travel Website and Angelique Ross Kaamiño/TravelEscapade TRAVEL Leisure Cebu/CdO/Butuan
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Mt. Kitanglad Range Natural Park Community and Cinchona Tree Forest Reserve, Kaatuan, Lantapan
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En biologie, chez les plantes à fleurs (angiospermes), la fleur constitue l'organe de la reproduction sexuée et l'ensemble des « enveloppes » qui l'entourent. Après la pollinisation, la fleur est fécondée et se transforme en fruit contenant les graines. Les fleurs peuvent être solitaires, mais elles sont le plus souvent regroupées en inflorescences.
Très tôt, les fleurs ont attiré l’attention de l’homme, qui les utilise et les cultive pour la parure (couronne de fleurs), pour l’ornementation intérieure (fleurs coupées, bouquets, ikebana) et extérieure (jardins, plates-bandes, etc.) ainsi que pour leurs odeurs et pigments. Les fleurs ont souvent inspiré les artistes, peintres, poètes, sculpteurs et décorateurs. La culture des fleurs est la floriculture, une branche de l'horticulture.
La plupart des fleurs sont hermaphrodites, c'est-à-dire qu'elles ont à la fois des organes reproducteurs mâles et femelles : elles ont un pistil et des étamines. Les étamines sont la partie mâle (qui libère du pollen), et le pistil la partie femelle (qui reçoit le pollen). Certaines plantes comme le pistachier ou le kiwi ont des fleurs qui ne sont pas hermaphrodites : elles sont soit mâles, soit femelles, les scientifiques parlent de fleurs gonochoriques. D'autres plantes comme l'avocatier ont des fleurs qui sont successivement mâles et femelles, on parle alors d'hermaphrodisme successif.
La fleur hermaphrodite est constituée de pièces florales insérées sur un réceptacle floral. Lorsque la fleur est complète, elle comprend quatre verticilles de pièces florales. De l'extérieur vers l'intérieur, on rencontre :
le calice, formé par l'ensemble des sépales ;
la corolle, formée par l'ensemble des pétales ;
l'androcée, c'est-à-dire l'ensemble des étamines (partie mâle), qui produit le pollen ;
le gynécée ou pistil, formé par l'ensemble des carpelles (partie femelle).
Calice et corolle forment le périanthe, enveloppe stérile, qui joue un rôle protecteur pour les pièces fertiles, et attractif pour les animaux pollinisateurs.
Ce plan théorique de la fleur, que l'on trouve typiquement chez le bouton d'or (Renonculacées), est sujet à de nombreuses variations. On rencontre par exemple des fleurs sans pétales, dites « apétales ». Une fleur mixte est une fleur qui possède à la fois étamines et pistil.
« La fleur double est celle dont quelqu'une des parties est multipliée au-delà de son nombre naturel, mais sans que cette multiplication nuise à la fécondation. Les fleurs se doublent rarement par le calice, presque jamais par les étamines. Leur multiplication la plus commune se fait par la corolle. Les exemples les plus fréquents sont dans les fleurs polypétales, comme œillets, anémones, renoncules ; les fleurs monopétales doublent moins communément. Cependant on voit assez souvent des campanules, des primevères auricules, et surtout des jacinthes à fleur double. Ce mot de fleur double ne marque pas dans le nombre des pétales une simple duplication, mais une multiplication quelconque. Soit que le nombre des pétales devienne double, triple, quadruple, etc., tant qu'ils ne multiplient pas au point d'étouffer la fructification, la fleur garde toujours le nom de fleur double ; mais, lorsque les pétales trop multipliés font disparaître les étamines et avorter le germe, alors la fleur perd le nom de fleur double et prend celui de fleur pleine. »
Iris sp. in Ohio, USA (1 June 2015).
Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago).
The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction.
Classification: Plantae, Angiospermophyta, Asparagales, Iridaceae
Locality: cultivar in Celina, Ohio, USA
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