Asplenium viride
| Green spleenwort | |
|---|---|
| File:Asplenium-viride.jpg | |
| Scientific classification Edit this classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Aspleniaceae |
| Genus: | Asplenium |
| Species: | A. viride
|
| Binomial name | |
| Asplenium viride | |
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
[edit | edit source]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).[2] 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".[3] That name was later rejected in favour of William Hudson's later name Asplenium viride,[4] 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).[5]
A global phylogeny of Asplenium published in 2020 divided the genus into eleven clades,[6] which were given informal names pending further taxonomic study. A. viride belongs to the "A. viride subclade" of the "A. trichomanes clade".[7] 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.[8]
Ecology
[edit | edit source]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
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- ^ Xu et al. 2020, p. 27.
- ^ Xu et al. 2020, p. 39.
- ^ Xu et al. 2020, p. 44.
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External links
[edit | edit source]- File:Wikispecies-logo.svg Data related to Asplenium viride at Wikispecies
- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
- Flora of North America: Asplenium viride
- Asplenium viride Green Spleenwort, Wild Flowers of the British Isles
- Asplenium viride Archived 2018-06-17 at the Wayback Machine, Skye Flora
- Asplenium viride, Flora of Northern Ireland
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