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Cetradonia linearis
Cetradonia linearis
Scientific classification edit
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Cetradoniaceae
Genus: Cetradonia
J.C.Wei & Ahti (2002)
C. linearis
Binomial name
Cetradonia linearis
(A.Evans) J.C.Wei & Ahti (2002)

Cetradonia is a lichen and the only genus in the family Cetradoniaceae. A monotypic genus, Cetradonia contains the single species Cetradonia linearis (formerly known as Cladonia linearis and as Gymnoderma lineare). The genus was circumscribed in 2002.[2]

Cetradonia linearis, commonly known as the rock gnome lichen, is a squamulose lichen found in the higher elevations of the southern Appalachian Mountains. Populations are only known to exist in Georgia, North Carolina, South Carolina and Tennessee; the lichen occurs only in frequent fog, or in deep river gorges. Because of its specialized habitat requirements and heavy collection for scientific purposes, the lichen has been listed as an endangered species since January 18, 1995, it is only one of two lichens on the endangered species list, the other being the Florida perforate cladonia.[3]

See also[edit]


  1. ^ "Synonymy: Cetradonia linearis (A. Evans) J.C. Wei & Ahti". Species Fungorum. CAB International. Retrieved 2015-07-02.
  2. ^ Wei CZ, Ahti T. (2002). "Cetradonia, a new genus in the new family Cetradoniaceae (Lecanorales, Ascomycota)". The Lichenologist. 34 (1): 19–31. doi:10.1006/lich.2001.0354.
  3. ^ USFWS. Rock Gnome Lichen. Archived June 14, 2013, at the Wayback Machine Asheville Field Office.

External links[edit]