Biology:Arctoparmelia separata

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Short description: Species of lichen

Arctoparmelia separata
Scientific classification edit
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Arctoparmelia
Species:
A. separata
Binomial name
Arctoparmelia separata
(Th.Fr.) Hale (1974)
Synonyms
  • Parmelia separata Th.Fr. (1879)
  • Xanthoparmelia separata (Th.Fr.) Hale (1974)

Arctoparmelia separata, commonly known as the rippled ring lichen,[1] is a species of foliose, ring lichen in the family Parmeliaceae with a roughly circumpolar distribution.

Taxonomy

The lichen was first described scientifically by Theodor Magnus Fries in 1879 as a species of Parmelia.[2] Mason Hale transferred it to Xanthoparmelia in 1974.[3] In 1986, Hale segregated five Xanthoparmelia species to the newly-created genus Arctoparmelia in 1986. This group of species, including X. separata, is characterized by the velvety, ivory-white to purplish colour of the lower surface of the thallus, the presence of alectoronic acid, and a geographical range restricted to arctic or boreal locations.[4] Arctoparmelia separata is commonly known as the rippled ring lichen.[5]

Description

Arctoparmelia separata resembles the more common Arctoparmelia centrifuga, but is distinguished from that species by the dull mouse-grey colour of its lower surface, and its thicker and more rigid thallus,[5] and its long lobes that are divaricately branched. The lichen has an incompletely circumpolar distribution. It has been recorded from northern North America,[5] Greenland,[6] and Japan, and Siberia west to Novaya Zemlya.[4] It has not been recorded in continental Europe.[7]

References

  1. "Standardized Common Names for Wild Species in Canada". 2020. https://www.wildspecies.ca. 
  2. Fries, Theodor M. (1879). "On the lichens collected during the English Polar Expedition of 1875–76". Botanical Journal of the Linnean Society 17 (102): 353. doi:10.1111/j.1095-8339.1879.tb00444.x. 
  3. Hale, M.E. (1974). "Bulbothrix, Parmelina, Relicina and Xanthoparmelia, four new genera in the Parmeliaceae". Phytologia 28 (5): 479–490. https://www.biodiversitylibrary.org/page/13046479. 
  4. 4.0 4.1 Hale, Mason E. (1986). "Arctoparmelia, a new lichen genus in the Parmeliaceae". Mycotaxon 25 (1): 251–254. http://www.cybertruffle.org.uk/cyberliber/59575/0025/001/0251.htm. 
  5. 5.0 5.1 5.2 Brodo, Irwin M.; Sharnoff, Sylvia Duran; Sharnoff, Stephen (2001). Lichens of North America. Yale University Press. p. 147. ISBN 978-0300082494. 
  6. Hansen, Eric S. (2000). "A contribution to the lichen flora of the Kangerlussuaq area, West Greenland". Cryptogamie, Mycologie 21 (1): 53–59. doi:10.1016/S0181-1584(00)00104-4. 
  7. Vitikainen, O.; Dudoreva, T. (2003). "Arctoparmelia subcentrifuga new to Europe". Graphis Scripta 14. https://www.researchgate.net/publication/268405755. 

Wikidata ☰ Q10417298 entry