Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Pezizomycotina O.E. Erikss. & Winka (1997) Class Laboulbeniomycetes Engl. (1897) Order Laboulbeniales Lindau (1897) Family Laboulbeniaceae G.Winter (1886) Genus Siemaszkoa I.I. Tav. & T. Majewski (1976)