''Roccellina'' 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 ...

lichen A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...

-forming

fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

in the family

Roccellaceae The Roccellaceae are a family (biology), family of mostly lichen-forming fungi in the order Arthoniales, established by the French botanist François Fulgis Chevallier in 1826. Species in the family exhibit various lichen growth forms, growth ...

Taxonomy

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 1898 by British botanist Otto Vernon Darbishire with ''

Roccellina condensata ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with '' Roccellina condensata'' as the type. At that time, only species. A yea ...

'' as the

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * ...

. At that time, only species. A year earlier, Darbishire published the genus ''Roccellaria'' to contain the species ''Roccellaria intricata''. More than a century later,

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

analysis showed that this species is nested in the

polyphyletic A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies ...

genus ''Roccellina''. Because ''Roccellaria'' was published earlier than ''Roccellina'', the name ''Roccellaria'' has priority, threatening to disrupt the nomenclature of all the ''Roccellina'' species. To avoid this nomenclatural instability, Swedish botanist Anders Tehler made a proposal to formally conserve the name ''Roccellina'' over ''Roccellaria''; the proposal was later accepted by the

Nomenclature Committee for Fungi International Botanical Congress (IBC) is an international meeting of botanists in all scientific fields, authorized by the International Association of Botanical and Mycological Societies (IABMS) and held every six years, with the location rotati ...

in 2010.

Species

*''

Roccellina arboricola ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscription (taxonomy), circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type species, ...

'' *'' Roccellina capensis'' *''

'' *''

Roccellina corrugata ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with '' Roccellina condensata'' as the type. At that time, only species. A yea ...

'' *''

Roccellina cumingiana ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type. At that time, only species. A year ...

'' *''

Roccellina exspectata ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type. At that time, only species. A year ...

'' *''

Roccellina hypomecha ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with '' Roccellina condensata'' as the type. At that time, only species. A yea ...

'' *''

Roccellina leptothalla ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type. At that time, only species. A year ...

'' *''

Roccellina mollis ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type. At that time, only species. A year ...

'' *''

Roccellina ochracea ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type. At that time, only species. A year ...

'' *''

Roccellina portentosa ''Roccellina'' is a genus of lichen-forming fungi in the family Roccellaceae. Taxonomy The genus was circumscribed in 1898 by British botanist Otto Vernon Darbishire with ''Roccellina condensata'' as the type. At that time, only species. A year ...

References

Roccellaceae Arthoniomycetes genera Lichen genera Taxa described in 1898 Taxa named by Otto Vernon Darbishire {{Arthoniomycetes-stub