''Buglossoporus'' 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

Fomitopsidaceae The Fomitopsidaceae are a family of fungi in the order Polyporales. Most species are parasitic on woody plants, and tend to cause brown rots. The name comes from ''Fomitopsis'' (meaning "looking like Fomes") + ''-aceae'' (a suffix used to form t ...

. 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 1966 by Czech mycologists František Kotlába and

Zdeněk Pouzar Zdeněk Pouzar (born 13 April 1932) is a Czech mycologist. Along with František Kotlaba, he published several works about the taxonomy of polypore, corticioid, and gilled fungi. Pouzar is a noted expert on stromatic pyrenomycetes. Until 2012, he ...

, with ''

Buglossoporus quercinus ''Buglossoporus'' is a genus of fungi in the family Fomitopsidaceae. The genus was circumscribed in 1966 by Czech mycologists František Kotlába and Zdeněk Pouzar, with '' Buglossoporus quercinus'' as the type species. In some works, ''Bugloss ...

'' 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 ...

. In some works, ''Buglossoporus'' has been treated as a

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

of ''

Piptoporus ''Piptoporus'' is a genus of bracket fungi in the Fomitopsidaceae family. Species Various species formerly classified as ''Piptoporus'' (for example, ''P. choseniae'', ''P. fraxineus'', ''P. ulmi'', ''P. hirtus'', and ''P. elatinus'') have been ...

''. ''

Buglossoporus magnus ''Buglossoporus magnus'' is a rare species of poroid fungus in the family Fomitopsidaceae. Recorded from only three locations in old growth lowland rainforest of Peninsular Malaysia, it is considered a vulnerable species by the IUCN. The large ...

'', known from only three locations in old growth lowland

rainforest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ...

Peninsular Malaysia Peninsular Malaysia ( ms, Semenanjung Malaysia; Jawi: سمننجڠ مليسيا), or the States of Malaya ( ms, Negeri-negeri Tanah Melayu; Jawi: نڬري-نڬري تانه ملايو), also known as West Malaysia or the Malaysian Peninsula, ...

, is considered a

vulnerable species A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, ...

by the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

, and appears on their Red List.

Description

The

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 ...

of ''Buglossoporus'' are annual. They have a cap, and a variable attachment to the

substrate Substrate may refer to: Physical layers *Substrate (biology), the natural environment in which an organism lives, or the surface or medium on which an organism grows or is attached ** Substrate (locomotion), the surface over which an organism lo ...

—in some species the cap is attached directly, while others have a stipe. The cap surface ranges in colour from pink, cinnamon, orange to brown, with a texture that is either felt-like or smooth, without zone lines. The pore surface on the cap underside is white, cream, buff to brown. Pores are small, with a round to angular shape. The

context Context may refer to: * Context (language use), the relevant constraints of the communicative situation that influence language use, language variation, and discourse summary Computing * Context (computing), the virtual environment required to su ...

is white, cream, buff, orange to brown, corky, and thicker than the tubes. It sometimes has a pellicle (a thin membrane) at the upper surface. The tubes are thin and fragile. ''Buglossoporus'' has a

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 system that is dimitic in the context, but monomitic in the trama. Generative hyphae have clamp connections, while the skeletal hyphae are thick-walled. There are no cystidia in the

hymenium The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in others some ...

, but thin-walled cystidioles are typically present. Spores produced by ''Buglossoporus'' range in shape from

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 ...

, to cylindrical, to spindle-shaped. They are

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

, thin-walled, and smooth, showing no reaction to Melzer's reagent. The fungus grows on

angiosperm Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

wood and causes a brown rot.

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 shows ''Buglossoporus'' be closely related to ''

Neolentiporus ''Neolentiporus'' is a fungal genus in the family Fomitopsidaceae. It contains '' Neolentiporus squamosellus'' and the type species '' N. maculatissimus''. The genus was circumscribed by mycologist Mario Rajchenberg in 1995. Description ''N ...

''. This latter genus, however, has a dimitic hyphal system in trama with irregularly thick-walled generative hyphae, and skeletal hyphae that are

metachromatic Metachromasia (var. metachromasy) is a characteristical change in the color of staining carried out in biological tissues, exhibited by certain dyes when they bind to particular substances present in these tissues, called chromotropes. For example, ...

Species list

*'' Buglossoporus americanus'' D.A.Reid (1976) – Costa Rica *''

Buglossoporus brunneiflavus ''Buglossoporus'' is a genus of fungi in the family Fomitopsidaceae. The genus was circumscribed in 1966 by Czech mycologists František Kotlába and Zdeněk Pouzar, with ''Buglossoporus quercinus'' as the type species. In some works, ''Buglosso ...

'' Corner (1984) *'' Buglossoporus eucalypticola'' M.L.Han, B.K.Cui & Y.C.Dai (2016) – China *'' Buglossoporus flavus'' Corner (1984) *'' Buglossoporus heritierae'' Corner (1984) *''

'' Corner (1984) *''

Buglossoporus malesianus ''Buglossoporus'' is a genus of fungi in the family Fomitopsidaceae. The genus was circumscribed in 1966 by Czech mycologists František Kotlába and Zdeněk Pouzar, with ''Buglossoporus quercinus'' as the type species. In some works, ''Buglosso ...

'' Corner (1984) – Asia *'' Buglossoporus marmoratus'' Corner (1984) *''

'' (Schrad.) Kotl. & Pouzar (1966) In a later study of Corner's Asian and West Pacific collections, Tsutomu Hattori concluded that both ''B. brunneiflavus'' and ''Buglossoporus flavus'' were "dubious species" due to "poor or sterile conditions", and that ''Buglossoporus matangensis'' and ''B. rufescens'' are

synonyms A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

of ''B. malesianus''. This latter synonymy was supported in a 2016 study.

References

{{Taxonbar, from=Q4986228 Fomitopsidaceae Polyporales genera Taxa described in 1966