Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Agaricales Underw. (1899) Family Psathyrellaceae Vilgalys, Moncalvo & Redhead (2001) Genus Cystoagaricus Singer (1947)