Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Leotiomycetes O.E. Erikss. & Winka (1997)
       1 Order Cyttariales Luttr. ex Gamundí (1971)
       2 Order Erysiphales Warm. (1884)
       3 Order Helotiales Nannf. (1932)
       3.0 Order Leotiales Carp. (1988)
       4 Order Rhytismatales M.E.Barr ex Minter (1986)
       5 Order Thelebolales P.F. Cannon (2001)
       6 Family Myxotrichaceae Currah (1985)
       7 ?Genus Darkera H.S. Whitney, J. Reid & Piroz. (1975)