''Ikaeria'' 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 two species 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
Teloschistaceae
The Teloschistaceae are a large family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The family, estimated to contain over 1800 species, was extensively revised in 2013, including the creation o ...
. Both species grow on twig bark of shrubs and trees. 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 ...
in 2017 by lichenologists
Sergey Kondratyuk
Sergey Yakovlevich Kondratyuk ( uk, Сергій Якович Кондратюк) (born 17 May 1959) is a Ukrainian botanist specialising in lichenology. His research deals with the taxonomy, floristics, ecology and geography of lichens and lic ...
,
, and Jae-Seoun Hur, with ''
Ikaeria aurantiellina'' assigned as the
type species
In 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 species that contains the biological type specimen ...
. This lichen was previously placed in the genus ''
Caloplaca
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
'', but
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 it belonged in a
lineage
Lineage may refer to:
Science
* Lineage (anthropology), a group that can demonstrate its common descent from an apical ancestor or a direct line of descent from an ancestor
* Lineage (evolution), a temporal sequence of individuals, populati ...
that was genetically distinct from that genus.
''
Ikaeria serusiauxii'' was added to the genus in 2020.
''Ikaeria'' has a
sister group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree.
Definition
The expression is most easily illustrated by a cladogram:
Taxon A and t ...
relationship with genus ''
Yoshimuria
''Yoshimuria'' is a genus of lichen-forming fungi in the family Teloschistaceae. It has four species of crustose lichens.
Taxonomy
The genus was circumscription (taxonomy), circumscribed in 2014 by a group of lichenologists, who assigned ''Yo ...
''; both are in the subfamily Caloplacoideae of the Teloschistaceae. ''Ikaeria'' is named in honour of Swedish lichenologist
Ingvar Kärnefelt
Jan Eric Ingvar Kärnefelt (born 1944) is a Swedish lichenologist.
Early life and education
Kärnefelt was born in Gothenburg, Sweden in 1944. His initial goal in his higher-level studies at University of Cologne in 1966–1967 was to become ...
.
Species
*''
Ikaeria aurantiellina'' –
Canary Islands
*''
Ikaeria serusiauxii''
–
Macaronesia and mainland Portugal
References
Teloschistales
Lichen genera
Taxa described in 2017
Teloschistales genera
Taxa named by Dalip Kumar Upreti
Taxa named by Sergey Kondratyuk
{{Teloschistales-stub