Arctoparmelia incurva
species of fungus
Arctoparmelia incurva is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae. First described in 1794 by Christiaan Hendrik Persoon, it has undergone several taxonomic reclassifications before being placed in its current genus in 1986. This yellowish-green lichen, characterised by its narrow, convex lobes and globular soralia, typically grows on sun-exposed siliceous rocks in alpine and arctic habitats. It has a circumpolar distribution, found across North America, Europe, and parts of Asia. A. incurva can be distinguished from similar species by its specific morphological features and chemical spot test reactions. The lichen is known to host several parasitic fungi and has shown tolerance to acid pollution.
Taxonomy
It was first scientifically described as a new species in 1794 by Christiaan Hendrik Persoon. He classified it in the genus Lichen, as was the custom thanks to the influence of Carl Linnaeus. Following proposed transfers to various genera, including Lobaria, and the now-obsolete Imbricaria and Placodium, the taxon got transferred to Parmelia by Elias Magnus Fries in 1826. It remained in that genus for more than a century, when Mason Hale reclassified it in the large genus Xanthoparmelia in 1974.
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The subject matters to the science & nature register because the source frames it as species of fungus. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated May 12, 2026. The linked authority identifier is Q10549579. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1794, 1986, 1826 and 1974.
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This entry incorporates text from “Arctoparmelia incurva” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.