The genus was circumscribed in 1966 by Czech mycologists František Kotlába and Zdeněk Pouzar, with Buglossoporus quercinus as the type species.

[2][3] Buglossoporus magnus, known from only three locations in old growth lowland rainforest of Peninsular Malaysia, is considered a vulnerable species by the IUCN, and appears on their Red List.

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 context is white, cream, buff, orange to brown, corky, and thicker than the tubes.

[5] 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 of B. malesianus.