Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Dothideomycetes O.E. Erikss. & Winka (1997) Family Piedraiaceae Viégas ex Cif., Bat. & Campos (1956) Genus Piedraia Fonseca & Leão (1928)