Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Agaricales Underw. (1899) Family Physalacriaceae Corner (1970) Genus Guyanagaster T.W. Henkel, M.E. Sm. & Aime (2010)