Kingdom Fungi R.T.Moore (1980) - fungi
   Subkingdom Dikarya Hibbett, T.Y. James & Vilgalys (2007)
     Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
       Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
         Class Dothideomycetes O.E. Erikss. & Winka (1997)
           Order Hysteriales Lindau (1896)
             Genus Hysterium Pers. (1797), nom. sanct.