Asplenium trichomanes subsp. coriaceifolium
Encyclopedia
Asplenium trichomanes subsp. coriaceifolium is an allotetraploid hybrid fern
( 2n = 144 chromosomes ) of the Aspleniaceae
family. 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.
Its frond
s 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.
(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).
Fern
A fern is any one of a group of about 12,000 species of plants belonging to the botanical group known as Pteridophyta. Unlike mosses, they have xylem and phloem . They have stems, leaves, and roots like other vascular plants...
( 2n = 144 chromosomes ) of the Aspleniaceae
Aspleniaceae
The Aspleniaceae is a family of ferns, included in the order Polypodiales or in some classifications as the only family in the order Aspleniales....
family. It was found for the first time in the Soller Valley in the Serra de Tramuntana
Serra de Tramuntana
The Serra de Tramuntana is a mountain range running southwest-northeast which forms the northern backbone of the Spanish island of Majorca. It is also the name given to the comarca of the same area...
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.
Its frond
Frond
The term frond refers to a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns are referred to as fronds and some botanists restrict the term to this group...
s are coriacea as plastic and the rachis
Rachis
Rachis is a biological term for a main axis or "shaft".-In zoology:In vertebrates a rachis can refer to the series of articulated vertebrae, which encase the spinal cord. In this case the rachis usually form the supporting axis of the body and is then called the spine or vertebral column...
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.
Habitat
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 aquilinocarsin quickly.Distribution
Its population is distributed in three locations separated by the Mediterranean Sea: the Balearic IslandsBalearic Islands
The Balearic Islands are an archipelago of Spain in the western Mediterranean Sea, near the eastern coast of the Iberian Peninsula.The four largest islands are: Majorca, Minorca, Ibiza and Formentera. The archipelago forms an autonomous community and a province of Spain with Palma as the capital...
(Mallorca, Ibiza
Ibiza
Ibiza or Eivissa is a Spanish island in the Mediterranean Sea 79 km off the coast of the city of Valencia in Spain. It is the third largest of the Balearic Islands, an autonomous community of Spain. With Formentera, it is one of the two Pine Islands or Pityuses. Its largest cities are Ibiza...
and Formentera
Formentera
Formentera is the smaller and more southerly island of the Pine Islands group , which belongs to the Balearic Islands autonomous community .-Geography:...
), south of the Iberian Peninsula
Iberian Peninsula
The Iberian Peninsula , sometimes called Iberia, is located in the extreme southwest of Europe and includes the modern-day sovereign states of Spain, Portugal and Andorra, as well as the British Overseas Territory of Gibraltar...
(Albacete, Jaen, Malaga and Cadiz) and the north of Morocco
Morocco
Morocco , officially the Kingdom of Morocco , is a country located in North Africa. It has a population of more than 32 million and an area of 710,850 km², and also primarily administers the disputed region of the Western Sahara...
(from Chefchaouen in Western Rif until the rocks surrounding the Caves of Chameau in Mountains of Beni Snassen).
Hybrids
- Asplenium × tubalense (Asplenium trichomanes nothosubsp. barreraense): allotetraploid hybrid between Asplenium trichomanes subsp. coriaceifolium and Asplenium trichomanes subsp. quadrivalens.
- Asplenium coriaceifolium × majoricum or Asplenium azomanes × majoricum: allotetraploid hybrid between Asplenium trichomanes subsp. coriaceifolium and Asplenium majoricum.
- Asplenium trichomanes nothosubsp. malacitense: hexaploid hybrid between Asplenium trichomanes subsp. coriaceifolium and Asplenium trichomanes subsp. inexpectans.