''Circinaria'' 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
crustose lichen
Crustose lichens are lichens that form a crust which strongly adheres to the Substrate (biology), substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichen ...
s in the family
Megasporaceae
Megasporaceae are a family of fungi belonging to the order Pertusariales. Taxa are lichenized with green algae, and grow on rocks, often in maritime climates close to fresh water. Phylogenetic analysis has shown that this family is related to the ...
. It was
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
Johann Heinrich Friedrich Link
Johann Heinrich Friedrich Link (2 February 1767 – 1 January 1851) was a German naturalist and botanist.
Biography
Link was born at Hildesheim as a son of the minister August Heinrich Link (1738–1783), who taught him love of nature throug ...
in 1809.
Species
,
Species Fungorum
''Index Fungorum'' is an international project to index all formal names (scientific names) in the fungus kingdom. the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research and the Institute of Mi ...
accepts 31 species of ''Circinaria'':
*''
Circinaria affinis''
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Circinaria arida''
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Circinaria caesiocinerea''
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Circinaria calcarea''
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Circinaria cerebroides''
*''
Circinaria contorta''
*''
Circinaria crespiana''
*''
Circinaria cupreogrisea''
*''
Circinaria deminuta''
– Australia
*''
Circinaria digitata''
*''
Circinaria elmorei''
*''
Circinaria emiliae''
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Circinaria esculenta''
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Circinaria fruticulosa''
*''
Circinaria gibbosa''
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Circinaria hispida''
*''
Circinaria jussuffii''
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Circinaria lacunosa''
*''
Circinaria laxilobata''
*''
Circinaria leprosescens''
*''
Circinaria maculata''
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Circinaria mansourii''
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Circinaria ochraceoalba''
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Circinaria rogeri''
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Circinaria rostamii''
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Circinaria schafeevii''
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Circinaria scyphulifera''
– Russia
*''
Circinaria serenensis''
*''
Circinaria subochracea''
*''
Circinaria tominii''
*''
Circinaria tortuosa''
*''
Circinaria transbaicalica''
References
Pertusariales
Pertusariales genera
Taxa described in 1809
Taxa named by Johann Heinrich Friedrich Link
{{Pertusariales-stub