Trichomanes speciosum

Trichomanes speciosum

Taxobox
name = Killarney Fern



regnum = Plantae
divisio = Tracheobionta
classis = Pteridophyta
subclassis =
ordo = Hymenophyllales
familia = Hymenophyllaceae
genus = "Trichomanes"
species = "T. speciosum"
binomial = "Trichomanes speciosum"
binomial_authority = Willd.

"Trichomanes speciosum" commonly known as Killarney Fern is a species of fern found widely in Western Europe. It is most abundant in Ireland, the United Kingdom, Brittany and Canary Islands, Madeira and the Azores, but is also found in other locations including France, Spain, Portugal and Italy. [ [http://www.ukbap.org.uk/UKPlans.aspx?ID=615 "Species Action Plan: Killarney Fern (Trichomanes speciosum)"] BAP. Retrieved 26 June 2008.]

The sporophyte form is found in only 16 locations in the UK although the gametophyte form is more widespread. Once found on Arran, it was thought to be extinct in Scotland due to the activities of Victorian collectors, [Ratcliffe, Derek (1977) "Highland Flora". Inverness. HIDB. page 40.] but the species has been discovered on Skye in its gametophyte form. [ [http://www.plant-identification.co.uk/skye/index.htm "Skye Flora"] . plant-identification.co.uk. Retrieved 25 May 2008.] In the UK it is classed as vulnerable and it is considered one of Europe's most threatened plants. [ [http://www.english-nature.org.uk/science/srp/rare_ferns.htm "Species Recovery Programme"] English Nature. Retrieved 26 June 2008.]

It is one of only three European species with translucent leaves and requires a humid, frost-free environment. In Britain, it is largely restricted to damp, shady, sheltered locations such as ravines. [ [http://www.arkive.org/species/ARK/plants_and_algae/Trichomanes_speciosum/more_info.html?section=description "Killarney fern (Trichomanes speciosum)"] Arkive. Retrieved 26 June 2008.]

References

External links

[http://www.habitas.org.uk/flora/species.asp?item=2028 Photographs]


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