Kingdom Fungi R.T.Moore (1980) - fungi Subkingdom Dikarya Hibbett, T.Y. James & Vilgalys (2007) Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Agaricomycetes Doweld (2001) Order Sebacinales M. Weiss, Selosse, Rexer, A. Urb. & Oberw. (2004), incertae sedis Genus Piriformospora Sav. Verma, Aj. Varma, Rexer, G. Kost & P. Franken (1998) see Genus Serendipita P. Roberts (1993)