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Subspecies of fern in the family Aspleniaceae From Wikipedia, the free encyclopedia
Asplenium trichomanes subsp. coriaceifolium is an allotetraploid hybrid fern (2n = 144 chromosomes) of the family Aspleniaceae. It was found for the first time in the Soller Valley in the Serra de Tramuntana of the island of Mallorca, Spain, and described by both Spanish and German botanists at the same time. The Spaniards gave it the name Asplenium azomanes.
Asplenium trichomanes subsp. coriaceifolium | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Polypodiales |
Suborder: | Aspleniineae |
Family: | Aspleniaceae |
Genus: | Asplenium |
Species: | |
Subspecies: | A. t. subsp. coriaceifolium |
Trinomial name | |
Asplenium trichomanes subsp. coriaceifolium Rasbach, K.Rasbach, Reichst. & Bennert | |
Synonyms | |
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Its fronds are coriacea as plastic and the rachis is very thick, dark garnet color and brilliance. A typical feature of this fern is the existence of a small atrium at the base of the pinnae medium and lower geared towards the apex of the frond with one or two sori in its underside. Sporulation occurs from October to March.
It lives among the stones of the walls of the terraces and in the crevices of limestone rocks oriented to the north and northwest. Depending on the degree of exposure to the sun, its phenotype changes a lot, becoming more coriaceous the more sunlight it receives. In the driest months of summer comes into estivation, dehydrating their fronds, reaching apparently dead. With the first rains of autumn, the fern rehydrate the dried fronds and turn green quickly.
Its population is distributed in three locations separated by the Mediterranean Sea: the Balearic Islands (Mallorca, Ibiza and Formentera), south of the Iberian Peninsula (Albacete, Jaen, Malaga and Cadiz) and the north of Morocco (from Chefchaouen in Western Rif until the rocks surrounding the Caves of Chameau in Mountains of Beni Snassen).
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