Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Dothideomycetes O.E. Erikss. & Winka (1997) Order Pleosporales Luttr. ex M.E.Barr (1987) Family Melanommataceae G.Winter (1885) Genus Karstenula Speg. (1879)