Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Leotiomycetes O.E. Erikss. & Winka (1997)
       Order Helotiales Nannf. (1932)
         Family Phacidiaceae Fr. (1821)
           1 ?Genus Ascocoma H.J. Swart (1987)
           2 Genus Lophophacidium Lagerb. (1949)
           3 Genus Phacidium Fr. (1815), nom. sanct., nom. cons.