Biology:Arctocetraria

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Short description: Genus of lichens


Arctocetraria
Arctocetraria andrejevii-1.jpg
Arctocetraria andrejevii
Scientific classification e
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Arctocetraria
Kärnefelt & A.Thell (1993)
Type species
Arctocetraria andrejevii
(Oxner) Kärnefelt & A.Thell (1993)
Species

A. andrejevii
A. nigricascens
A. simmonsii

Arctocetraria is a genus of foliose lichens in the family Parmeliaceae. It has three species.[1]

Taxonomy

The genus was circumscribed by lichenologists Ingvar Kärnefelt and Arne Thell in 1993, with Arctocetraria andrejevii assigned as the type species.[2]

In 2017, Pradeep Divakar and colleagues used a then-recently developed "temporal phylogenetic" approach to identify temporal bands for specific taxonomic ranks in the family Parmeliaceae, suggesting that groups of species that diverged within the time window of 29.45–32.55 million years ago represent genera. They proposed to synonymize Arctocetraria with Nephromopsis, along with several other Parmelioid genera, so that all the genera within the Parmeliaceae are about the same age.[3] Although some of their proposed taxonomic changes were accepted, the synonymization of the Parmelioid genera with Nephromopsis was not accepted in a later critical analysis of the temporal phylogenetic approach for fungal classification.[4]

Species

  • Arctocetraria andrejevii (Oxner) Kärnefelt & A.Thell (1993)
  • Arctocetraria nigricascens (Nyl.) Kärnefelt & A.Thell (1993)
  • Arctocetraria simmonsii (Krog) E.S.Hansen (2007)

References

  1. Lücking, Robert; Hodkinson, Brendan P.; Leavitt, Steven D. (2017). "The 2016 classification of lichenized fungi in the Ascomycota and Basidiomycota–Approaching one thousand genera". The Bryologist 119 (4): 361–416. doi:10.1639/0007-2745-119.4.361. 
  2. Kärnefelt, I.; Mattsson, J.E.; Thell, A. (1993). "The lichen genera Arctocetraria, Cetraria, and Cetrariella (Parmeliaceae) and their presumed evolutionary affinities". The Bryologist 96 (3): 394–404. doi:10.2307/3243869. 
  3. Divakar, Pradeep K.; Crespo, Ana; Kraichak, Ekaphan; Leavitt, Steven D.; Singh, Garima; Schmitt, Imke; Lumbsch, H. Thorsten (2017). "Using a temporal phylogenetic method to harmonize family- and genus-level classification in the largest clade of lichen-forming fungi". Fungal Diversity 84: 101–117. doi:10.1007/s13225-017-0379-z. 
  4. Lücking, Robert (2019). "Stop the abuse of time! Strict temporal banding is not the future of rank-based classifications in fungi (including lichens) and other organisms". Critical Reviews in Plant Sciences 38 (3): 199–253. doi:10.1080/07352689.2019.1650517. 


Wikidata ☰ Q4787615 entry