Regnum Mycetoideum
   Class Coniomycetes
     Order Sporodesmia
       1 Genus Seiridium Nees (1816), nom. sanct.
       2 Genus Sporodesmium Link (1809), nom. sanct., orth. inval. see Genus Sporidesmium Link (1809), nom. sanct.
       2.a Genus Coryneum Nees (1816), nom. sanct.
       3 Genus Exosporium Link (1809), nom. sanct.
       4 Genus Gymnosporangium R. Hedw. ex DC. (1805)