''Psorula'' is a fungal

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

in the family

Psoraceae The Psoraceae are a family of lichenized fungi in the order Lecanorales. The Austrian Botanist and Lichenologist Alexander Zahlbruckner first described the family in 1898. Species of this family have a widespread distribution. Genera This is a ...

. It is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

genus, containing the single lichen species ''Psorula rufonigra''. The genus 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 po ...

by German lichenologist

Gotthard Schneider Gotthard or Saint Gotthard (Italian: San Gottardo) may refer to: People * Gotthard of Hildesheim (960–1038), Roman Catholic saint * Gotthard Heinrici (1886-1971), German General * Uziel Gal, who grew up as Gotthard Glas Places * Saint-Gotthar ...

in 1980.

References

Lecanorales Lichen genera Lecanorales genera Taxa described in 1980 {{Lecanorales-stub