ferran pestaña
Mosques vermelles - Orquídea avispa - sawfly orchid -Ophrys tenthredinifera
www.flickr.com/photos/ferranp/2340471811/sizes/l/
The tenthredinifera Ophrys is terrestrial Orquídea that has underground, globular tubercle, and small which it leaves the simple turgid floral stem and without ramifications of about 30 cm. The flowers have labelo of great size. Labelo is trilobulado brown dark, with aterciopelado, trapezial, extended and made convex central lobe. Labelo of reddish brown color of about 13 to 18 mm in length has three triangular lateral lobes with both tiny that are returned slightly forwards with off-white fine hairs. The intermediate lobe is glabro and greater than the lateral ones it upwards has in means of the end a identación with a small yellow protuberance. Espéculo is of brown color in the center, the yellowish off-white inferior end, the superior end a great white spot. This variety has two equal lateral sépalos in size third becomes a little forwards. The three sépalos of about 7 mm in length and a color uniform pink. The most internal petals are enough smaller than the sépalos, wide and triangular, but of the same pink color that the sépalos, and make a great resistance with the dark tones of labelo. Of two to ten flowers they are developed in the floral stem with basal leaves. The flowers are only, nonsingle by their unusual beauty, exceptional gradation of color and forms, but also by the naivete with which they attract the insects. His labelo imitates in this case to the abdomen of a wasp. This species is very variable in its drawings and gradation of color. They bloom of half-full of March to April. This visual suggestion serves like reclamation intimo. This mímica polinización is increased when producing in addition the fragrance to the female of the insect in fervor. These feromonas cause that the insect approaches to investigate. This only happens in the determined period in which the males are in fervor and the females have still not copulado. The insect so is excited that it begins to copular with the flower. This denominates "pseudocopulación", the firmness, the smoothness, and the hairs aterciopelados of labelo, are the greater incentives, so that the insect introduces itself in the flower. Polinia adheres at the top or to the abdomen of the insect. When it returns to visit another flower polinia strikes estigma. The filaments of polinia during the transport change of position in such a way that the grain cereos of polen can strike to estigma, so is the degree of refinement of the reproduction. If the filaments do not take the new position polinia they could not have fertilized the new orquídea. Each orquídea has its own polinizador insect and depends completely on this polinizadora species for its survival. What is plus the embaucados males is probable that they do not even return or who ignore plants of the same species. By all this near 10 % of the population of Ophrys it only gets to be polinizada. This is sufficient to preserve the population of Ophrys, if they consider that each fertilized flower produces 12.000 tiny seeds.
Mosques vermelles - Orquídea avispa - sawfly orchid -Ophrys tenthredinifera
www.flickr.com/photos/ferranp/2340471811/sizes/l/
The tenthredinifera Ophrys is terrestrial Orquídea that has underground, globular tubercle, and small which it leaves the simple turgid floral stem and without ramifications of about 30 cm. The flowers have labelo of great size. Labelo is trilobulado brown dark, with aterciopelado, trapezial, extended and made convex central lobe. Labelo of reddish brown color of about 13 to 18 mm in length has three triangular lateral lobes with both tiny that are returned slightly forwards with off-white fine hairs. The intermediate lobe is glabro and greater than the lateral ones it upwards has in means of the end a identación with a small yellow protuberance. Espéculo is of brown color in the center, the yellowish off-white inferior end, the superior end a great white spot. This variety has two equal lateral sépalos in size third becomes a little forwards. The three sépalos of about 7 mm in length and a color uniform pink. The most internal petals are enough smaller than the sépalos, wide and triangular, but of the same pink color that the sépalos, and make a great resistance with the dark tones of labelo. Of two to ten flowers they are developed in the floral stem with basal leaves. The flowers are only, nonsingle by their unusual beauty, exceptional gradation of color and forms, but also by the naivete with which they attract the insects. His labelo imitates in this case to the abdomen of a wasp. This species is very variable in its drawings and gradation of color. They bloom of half-full of March to April. This visual suggestion serves like reclamation intimo. This mímica polinización is increased when producing in addition the fragrance to the female of the insect in fervor. These feromonas cause that the insect approaches to investigate. This only happens in the determined period in which the males are in fervor and the females have still not copulado. The insect so is excited that it begins to copular with the flower. This denominates "pseudocopulación", the firmness, the smoothness, and the hairs aterciopelados of labelo, are the greater incentives, so that the insect introduces itself in the flower. Polinia adheres at the top or to the abdomen of the insect. When it returns to visit another flower polinia strikes estigma. The filaments of polinia during the transport change of position in such a way that the grain cereos of polen can strike to estigma, so is the degree of refinement of the reproduction. If the filaments do not take the new position polinia they could not have fertilized the new orquídea. Each orquídea has its own polinizador insect and depends completely on this polinizadora species for its survival. What is plus the embaucados males is probable that they do not even return or who ignore plants of the same species. By all this near 10 % of the population of Ophrys it only gets to be polinizada. This is sufficient to preserve the population of Ophrys, if they consider that each fertilized flower produces 12.000 tiny seeds.