Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Agaricales Underw. (1899) Family Hymenogastraceae De Toni (1888) Genus Psathyloma Soop, J.A. Cooper & Dima (2016)