''Oligoporus'' 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 ...

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

Polyporaceae The Polyporaceae are a family of poroid fungi belonging to the Basidiomycota. The flesh of their fruit bodies varies from soft (as in the case of the dryad's saddle illustrated) to very tough. Most members of this family have their hymeniu ...

. 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 German mycologist

Julius Oscar Brefeld Julius Oscar Brefeld (19 August 1839 – 12 January 1925), usually just Oscar Brefeld, was a German botanist and mycologist. Biography Brefeld was a native of Telgte. He studied pharmacy in Heidelberg and Berlin, and afterwards served as an a ...

in 1888 with ''Oligoporus farinosus'' as the type. This species is currently known as '' Postia rennyi''. The genus name combines the

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

words ("few") and ("pore"). ''Oligoporus'' species have

fruit bodies The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...

that are either crust-like or pileate (i.e., with a

cap A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. Caps typically have a visor, or no brim at all. They are popular in casual and informal se ...

). Species cause a brown rot of wood. The

hypha A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or ...

l structure is monomytic, meaning that only generative hyphae are produced. Spores made by ''Oligoporus'' fungi are

ellipsoid An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the ...

or have a short cylindrical shape.

Species

A 2008 estimate placed 10 species in ''Oligoporus''; ,

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 13 species. * '' Oligoporus alni'' (Niemelä & Vampola) Piatek (2003) – Europe * '' Oligoporus balsaminus'' (Niemelä & Y.C.Dai) Niemelä (2005) – Eurasia * '' Oligoporus bambusicola'' (Corner) T.Hatt. (2002) * '' Oligoporus cretaceitextus'' (Corner) T.Hatt. (2002) * ''

Oligoporus davidiae ''Oligoporus'' is a genus of fungi in the family Polyporaceae. The genus was circumscribed by German mycologist Julius Oscar Brefeld in 1888 with ''Oligoporus farinosus'' as the type. This species is currently known as '' Postia rennyi''. The ge ...

'' (M. Pieri & B. Rivoire) Niemelä (2009) * ''

Oligoporus dissectus ''Oligoporus'' is a genus of fungi in the family Polyporaceae. The genus was circumscribed by German mycologist Julius Oscar Brefeld in 1888 with ''Oligoporus farinosus'' as the type. This species is currently known as '' Postia rennyi''. The ge ...

'' (Cooke) Huckfeldt & O.Schmidt (2017) * ''

Oligoporus friesii ''Oligoporus'' is a genus of fungi in the family Polyporaceae. The genus was circumscribed by German mycologist Julius Oscar Brefeld in 1888 with ''Oligoporus farinosus'' as the type. This species is currently known as '' Postia rennyi''. The ge ...

'' Falck & O.Falck (1937) * ''

Oligoporus hydnoidea ''Oligoporus'' is a genus of fungi in the family Polyporaceae. The genus was circumscribed by German mycologist Julius Oscar Brefeld in 1888 with ''Oligoporus farinosus'' as the type. This species is currently known as '' Postia rennyi''. The ge ...

'' G.Gaarder & Ryvarden (2003) * ''

Oligoporus perplexus ''Oligoporus'' is a genus of fungi in the family Polyporaceae. The genus was circumscribed by German mycologist Julius Oscar Brefeld in 1888 with ''Oligoporus farinosus'' as the type. This species is currently known as '' Postia rennyi''. The ge ...

'' (Corner) T.Hatt. (2001) * '' Oligoporus persicinus'' (Niemelä & Y.C.Dai) Niemelä (2005) – Europe * '' Oligoporus romellii'' (M.Pieri & B.Rivoire) Niemelä (2009) – Finland * '' Oligoporus subfragilis'' (Corner) T.Hatt. (2003) * '' Oligoporus wakefieldiae'' (Kotl. & Pouzar) L.Ryvarden & Melo (2014)

References

External links

* Wood-decay fungi Fomitopsidaceae Polyporales genera Taxa described in 1888 Taxa named by Julius Oscar Brefeld {{Polyporales-stub