Regnum Mycetoideum
   Class Hyphomycetes Fr. (1821) see Class Monilia A.Rich. (1832)
     Order Inomycetes
       Suborder Mucedines
         Mucedineae liberæ Nees
           Trichomyci Nees
             Genus Collarium Link (1809), nom. sanct., nom. dub.