Wednesday, September 25, 2013

Nature is stubborn, has many resources and is surprisingly wise. Species, not extinguished, mutate,


Nature is stubborn, has many resources and is surprisingly wise. Species, not extinguished, mutate, become hybrid, adapt to our attacks, hibernate, spend their summer holidays, the best and strongest survive. All is not lost.
Is a fern lover of light, mild temperatures and ground frost free acid rather dry. Not support the shade or excessive moisture. Their succulent agua residual rhizomes full of water and nutrients allow withstand long periods of drought. He likes to live on rocks covered with moss and lichen and as epiphyte, especially oaks, holm oaks, cork oaks and laurel trees, like Garo, barbusanos, viñátigos and laurels. Adaptability also allows you to colonize walls and clear of Faial-heath. Its range covers Galicia, Asturias, northern Portugal, Cadiz, Malaga, Madeira agua residual and the Canary Islands. It belongs to the family of Davalliaceae and its chromosome is 2n = 80.
In Andalusia below canariensis is protected by law and respect the escorçadors the cork when found growing as an epiphyte on the cork. Of the image has its roots tucked between the ridges of cork. Photo taken at Parque Natural Alcornocales in the province of Cadiz near the town of Jimena de la Frontera.
Young canariensis below the rhizome rooted moss on a rock on Mount POIs on the island of Madeira. The rhizome of this fern grows forever on the substrate surface, never covered, as it supports moisture. You need to touch the light and air. It can reach up to 2 inches in diameter. From the bottom, which is in contact with the ground, which set forth the rhizome roots, which grow and branching so that comes form a small colony with multiple buds, all from a single individual .
Details of previous rhizome covered with blades up to 12 mm long, lanceolate, agua residual glossy, margin hyaline and ciliate. As it grows and branches to form buds which sprout fronds that can grow to 50 centimeters agua residual long, with the petiole as long as the blade, reddish-brown, paleàci, darker at the base. The petiole is green because the picture belongs to a still tender foliage. Will be darkening as time passes.
Long esporangiòfor sporangium of a descending canariensis, which serves as an umbilical cord. It consists of several tubular cells and connects esporangio the pinnule, which supplies water and nutrients esporangiòfor the door to ring the sporangium, which has a similar function in the placenta mammals and feeds the spores are growing while inside the sporangium bag.
2013 (2) May (1) April (1) 2012 (32) February (2) April (1) August (2) September (3) July (3) July (3) June (2) April (4) March (4) February agua residual (4) January (4) 2011 (61) December (5) November (4) October (5) September (4) October (4) July (6) June (6) May (6) April (6) March (4) Fossombronia caespitiformis, dared to come out ... Love the sun and wearing a wool coat below canariensis, the Macaronesian rhizomatous Phyllitis scolopendrium, deer tongue February (6) January (5) 2010 (24) December (8) November (9) October (7)
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Ceratonia siliqua, the fodder of Lapland reindeers
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