Pyrrhoglossum and the small-spored species of Gymnopilus (Cortinariaceae) in eastern Australia

Three new species of Gymnopilus subgenusGymnopilus section Microspori aredescribed from eastern Australia. These areGymnopilus marginatus,Gymnopilus patriae andGymnopilus parvisporus. Because of their frequently excentrically stipitate habit and small spore size, the species are comparedwith Pyrrhoglossum pyrrhum (Berk. & M.A.Curtis)Singer, the type species of the genus Pyrrhoglossum,whose presence is also recorded from Australia for the first time. Pigment content of all four species has been examined by thin layer chromatography.Styrylpyrone pigments bis-noryangonin and hispidin were detected in only two of the three Gymnopilus species.Although yellow pigment can be extracted fromPyrrhoglossum pyrrhum, it does not containbis-noryangonin or hispidin.