Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Lichinomycetes Reeb, Lutzoni & Cl.Roux (2004) [monotypic] Order Lichinales Henssen & Büdel (1986) Family Lichinaceae Nyl. (1854) Genus Phylliscidium Forssell (1885)