''Cerothallia'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

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

Teloschistaceae The Teloschistaceae are a large family (biology), family of mostly lichen-forming fungi belonging to the class (taxonomy), class Lecanoromycetes in the division (botany), division Ascomycota. The family has a cosmopolitan distribution, althoug ...

. It has four species, all of which occur in the Southern Hemisphere. The genus was

circumscribed In geometry, a circumscribed circle for a set of points is a circle passing through each of them. Such a circle is said to ''circumscribe'' the points or a polygon formed from them; such a polygon is said to be ''inscribed'' in the circle. * Circum ...

in 2013 by Ulf Arup, Patrik Frödén, and Ulrik Søchting, with '' Cerothallia luteoalba'' assigned as the

type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...

. The type is more widely distributed, as it is also found in Europe and North America. The generic name ''Cerothallia'' means "with waxy

thallus Thallus (: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. A thallus usually names the entir ...

Species

*'' Cerothallia luteoalba'' *''

Cerothallia subluteoalba ''Cerothallia subluteoalba'' is a species of corticolous lichen, corticolous (bark-dwelling), crustose lichen in the family Teloschistaceae. Found in Australia, it was described as a new species in 2009. This species is distinguished by its num ...

'' *'' Cerothallia yarraensis'' *'' Cerothallia yorkensis''

References

Teloschistales Teloschistales genera Taxa described in 2013 Lichen genera Taxa named by Ulrik Søchting Taxa named by Patrik Frödén Taxa named by Ulf Arup {{Teloschistales-stub