Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Family Xanthopyreniaceae Zahlbr. (1926) 1 Genus Collemopsidium Nyl. (1881) 2 Genus Didymellopsis (Sacc.) Clem. & Shear (1931) 3 Genus Pyrenocollema Reinke (1895) 4 Genus Zwackhiomyces Grube & Hafellner (1990)