Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Leotiomycetes O.E. Erikss. & Winka (1997) Order Phacidiales Bessey (1907) Family Phacidiaceae Fr. (1821) Genus Pseudophacidium P.Karst. (1885)