Vegetabilia mycetoidea
   Kingdom Nematomyci
     Circulus Mucores
       Semicirculus Nematomyci
         Series Mucedines vesiculiferae see Order Mucoroidei
           Genus Mucor P. Micheli ex L. (1753), nom. sanct., nom. rej. see Genus Calicium Pers. (1794), nom. sanct.