Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Leotiomycetes O.E. Erikss. & Winka (1997)
       Order Rhytismatales M.E.Barr ex Minter (1986)
         01 Family Ascodichaenaceae D.Hawksw. & Sherwood (1982)
         02 Family Cryptomycetaceae Höhn. (1917), nom. inval. see Family Rhytismataceae Chevall. (1826), nom. cons.
         03 Family Cudoniaceae P.F. Cannon (2001)
         04 Family Rhytismataceae Chevall. (1826), nom. cons.
         05 ?Genus Apiodiscus Petr. (1940)
         06 ?Genus Bonanseja Sacc. (1906)
         07 Genus Brunaudia (Sacc.) Kuntze (1898)
         08 Genus Cavaraella Speg. (1923)
         09 ?Genus Didymascus Sacc. (1896)
         10 Genus Gelineostroma H.J. Swart (1988)
         11 ?Genus Haplophyse Theiss. (1916)
         12 Genus Heufleria Auersw. (1869), incertae sedis
         13 Genus Hypodermellina Höhn. (1917)
         14 ?Genus Irydyonia Racib. (1900)
         15 ?Genus Karstenia Fr. (1885), nom. cons.
         16 ?Genus Laquearia Fr. (1849)
         17 Genus Lasiostictella Sherwood (1986)
         18 ?Genus Melittosporiella
         19 Genus Mellitiosporium Corda (1838)
         20 Genus Metadothis (Sacc.) Sacc. (1892) see Genus Dothiora Fr. (1849), nom. cons.
         21 Genus Neophacidium Petr. (1950)
         22 Genus Ocotomyces H.C. Evans & Minter (1985)
         23 Genus Phaeophacidium Henn. & Lindau (1897)
         24 Genus Propolidium Sacc.
         25 ?Genus Pseudotrochila Höhn. (1917)
         26 ?Genus Tridens Massee (1901)