Biology:Asplenium viride

From HandWiki
Short description: Species of fern in the family Aspleniaceae

Green spleenwort
Asplenium-viride.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Aspleniaceae
Genus: Asplenium
Species:
A. viride
Binomial name
Asplenium viride
Huds.
Green spleenwort in its native habitat in Germany

Asplenium viride is a species of fern known as the green spleenwort because of its green stipes and rachides. This feature easily distinguishes it from the very similar-looking maidenhair spleenwort, Asplenium trichomanes.

Taxonomy

Green spleenwort was described by Carl Linnaeus in his 1753 Species Plantarum, under the name "Asplenium Trich. ramosum", with a type locality of "in Arvorniæ rupibus" (rocks in Caernarfonshire).[1] Under the rules of the International Code of Botanical Nomenclature, phrase names such as "Asplenium Trichomanes ramosum" are to be treated as orthographic errors – in this case, for "Asplenium ramosum".[2] That name was later rejected in favour of William Hudson's later name Asplenium viride,[3] which had a type locality of "in rupibus humidis in montibus Walliæ et in comitatibus Eboracensi et Westmorlandico" (damp rocks in the mountains of Wales, Yorkshire and Westmorland).[4]

A global phylogeny of Asplenium published in 2020 divided the genus into eleven clades,[5] which were given informal names pending further taxonomic study. A. viride belongs to the "A. viride subclade" of the "A. trichomanes clade".[6] The A. trichomanes clade has a worldwide distribution. Members of the clade grow on rocks and usually have once-pinnate leaf blades with slender, chestnut- to dark-brown stalks. The A. viride subclade, which contains only A. viride and its allopolyploid descendant A. adulterinum, is exceptional in having green stalks.[7]

Ecology

A. viride is a native species of northern and western North America and northern Europe and Asia. It is a small rock fern, growing on calcareous rock. It is a diploid species, with n = 36, and hybridizes with Asplenium trichomanes to produce Asplenium × adulterinum, found on Vancouver Island, British Columbia.

References

  1. Carl Linnaeus (1753). Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. 2. Stockholm: Impensis Laurentii Salvii. http://www.botanicus.org/item/31753000802832. 
  2. "Article 23: Names of species". International Code of Botanical Nomenclature (Tokyo Code). Regnum Vegetabile 131. Königstein: Koeltz Scientific Books. 1994. ISBN 3-87429-367-X. 
  3. Zimmer, B.; Greuter, W.. "Proposal to Reject the Name Asplenium ramosum L. (Pteridophyta)". Taxon 43 (2): 303–304. doi:10.2307/1222897. 
  4. William Hudson (1798). Flora anglica (3rd ed.). R. Faulder. p. 453. https://books.google.com/books?id=Jx05AAAAMAAJ. 
  5. Xu et al. 2020, p. 27.
  6. Xu et al. 2020, p. 39.
  7. Xu et al. 2020, p. 44.

External links

Wikidata ☰ Q1552374 entry