[Class] Cryptogamia L. (1753)
   Cryptophyta Link (1824)
     Fungi (Jahn & Jahn, 1959)
       Order Hyphomycetes Fr. (1821)
         Series VII
           Trichoidei
             67 Genus Helicomyces Link (1809)
             68 Genus Dematium Link (1809), nom. sanct.
             69 Genus Ozonium Link (1809), nom. sanct., nom. dub.
             App. Genus Fibrillaria Pers. (1822), nom. illeg.
             q Genus Hypha Pers. (1822), nom. dub.