Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Agaricales Underw. (1899) Family Cortinariaceae Singer (1951), nom. cons. Genus Quadrispora Bougher & Castellano (1993)