Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Laboulbeniomycetes Engl. (1897) Order Laboulbeniales Lindau (1897) Family Ceratomycetaceae S. Colla (1934) Genus Phurmomyces Thaxt. (1931)