''Roccellina'' 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
Roccellaceae.
Taxonomy
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 polyg ...
in 1898 by British botanist
Otto Vernon Darbishire
Otto Vernon Darbishire (16 March 1870 – 17 October 1934) was a British botanist who specialised in marine algae and lichens. Born in Conwy (Caernarfonshire, Wales), he was educated at several places and eventually graduated from the University ...
with ''
Roccellina condensata'' 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.
* Ty ...
, and 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 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 in 2010.
Species
*''
Roccellina arboricola''
*''
Roccellina capensis''
*''
Roccellina condensata''
*''
Roccellina corrugata''
*''
Roccellina cumingiana''
*''
Roccellina exspectata''
*''
Roccellina hypomecha''
*''
Roccellina leptothalla''
*''
Roccellina mollis''
*''
Roccellina ochracea''
*''
Roccellina portentosa''
References
Roccellaceae
Ascomycota genera
Lichen genera
Taxa described in 1898
Taxa named by Otto Vernon Darbishire
{{Arthoniomycetes-stub