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 Sordariomycetes O.E. Erikss. & Winka (1997)
           Subclass Hypocreomycetidae O.E. Erikss. & Winka (1997)
             Order Hypocreales Lindau (1897)
               1 Genus Hypocrea Fr. (1825)
               2 Genus Nectria (Fr.) Fr. (1849), nom. cons., nom. protect.
               3 Genus Cordyceps Fr. (1818), nom. cons.
               4 Genus Claviceps Tul. (1853)
               5 Genus Niesslia Auersw. (1869)