''Efibula'' 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 16 species of

crust fungi The corticioid fungi are a group of fungi in the Basidiomycota typically having effused, smooth basidiocarps (fruit bodies) that are formed on the undersides of dead tree trunks or branches. They are sometimes colloquially called crust fungi or pa ...

in the family

Irpicaceae The Irpicaceae are a family of mostly polypores and crust fungi in the order Polyporales. Taxonomy The family was circumscribed in 2003 by mycologists Viacheslav Spirin and Ivan Zmitrovich. The type genus is '' Irpex''. Later multi-gene phylogen ...

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 ...

by Sheng-Hua Wu in 1990 with '' Efibula tropica'' 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 ...

. ''Efibula'' contains ''

Phlebia ''Phlebia'' is a genus of mostly crust fungi in the family Meruliaceae. The genus has a widespread distribution. ''Phlebia'' species cause white rot. Taxonomy ''Phlebia'' was circumscribed by Swedish mycologist Elias Fries in his 1821 work ''Sy ...

''-like fungi without

clamp connection A clamp connection is a hook-like structure formed by growing hyphal cells of certain fungi. It is a characteristic feature of Basidiomycetes fungi. It is created to ensure that each cell, or segment of hypha separated by septa (cross walls), rece ...

s. Although traditionally classified in the family

Phanerochaetaceae The Phanerochaetaceae are a family of mostly crust fungi in the order Polyporales. Taxonomy Phanerochaetaceae was first conceived by Swedish mycologist John Eriksson in 1958 as the subfamily Phanerochaetoideae of the Corticiaceae. It was later ...

, recent

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 supports the placement of ''Efibula '' in the

Species

Index Fungorum ''Index Fungorum'' is an international project to index all formal names ( scientific names) in the fungus kingdom. the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research and the Institute of M ...

accepts 16 species in ''Efibula'': *'' Efibula americana'' Floudas & Hibbett (2015) *'' Efibula aurata'' (Bourdot & Galzin) Zmitr. & Spirin (2006) *'' Efibula avellanea'' (Bres.) Sheng H.Wu (1990) *'' Efibula bubalina'' (Burds.) Zmitr. & Spirin (2006) *'' Efibula clarkii'' Floudas & Hibbett (2015) *'' Efibula cordylines'' (G.Cunn.) Zmitr. & Spirin (2006) *'' Efibula corymbata'' (G.Cunn.) Zmitr. & Spirin (2006) *'' Efibula deflectens'' (P.Karst.) Sheng H.Wu (1990) *'' Efibula ginnsii'' (Sheng H.Wu) Zmitr. & Spirin (2006) *'' Efibula gracilis'' Floudas & Hibbett (2015) *'' Efibula lutea'' Sheng H.Wu (1990) *'' Efibula pallidovirens'' (Bourdot & Galzin) Sheng H.Wu (1990) *'' Efibula subodontoidea'' (Sheng H.Wu) Zmitr. & Spirin (2006) *'' Efibula subquercina'' (Henn.) Zmitr. & Spirin (2006) *'' Efibula tropica'' Sheng H.Wu (1990) *'' Efibula tuberculata'' (P.Karst.) Zmitr. & Spirin (2006) *'' Efibula verruculosa'' (Hjortstam & Ryvarden) Kotir. & Saaren. (1993) The genus '' Roseograndinia'' was created in 2005 to contain the fungus once proposed for transfer into ''Efibula'' as ''Efibula rosea''.

References

Irpicaceae Polyporales genera Taxa described in 1990 {{Polyporales-stub