Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Polyporales Gäum. (1926) Family Steccherinaceae Parmasto (1968) Genus Frantisekia Spirin & Zmitr. (2007)