Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Dothideomycetes O.E. Erikss. & Winka (1997)
       Order Acrospermales Minter, Peredo & A.T. Watson (2007), incertae sedis [monotypic]
         Family Acrospermaceae Fuckel (1870)
           1 Genus Acrospermum Tode (1783), nom. sanct.
           2 Genus Gonatophragmium Deighton (1969)
           3 Genus Oomyces Berk. & Broome (1851)