''Pycnothelia'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.[fungi
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...]
in the family
Cladoniaceae.
''Pycnothelia'' was promoted to generic status by French naturalist
Léon Jean Marie Dufour
Léon Jean Marie (or Jean-Marie Léon) Dufour (10 April 1780, Saint-Sever – 18 April 1865) was a French medical doctor and naturalist.
Between 1799 and 1806 he studied medicine in Paris then returned to Saint-Sever in the Landes. He participate ...
in 1821;
it was originally
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every polyg ...
by
Erik Acharius in 1799 as a
section of the now-defunct genus ''Cenomyce''.
Species
*''
Pycnothelia caliginosa''
*''
Pycnothelia mascarena''
*''
Pycnothelia papillaria''
References
Cladoniaceae
Lichen genera
Lecanorales genera
Taxa described in 1821
Taxa named by Léon Jean Marie Dufour
{{Lecanorales-stub