Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Xylariomycetidae O.E. Erikss. & Winka (1997)
         Order Xylariales Nannf. (1932)
           Family Hyponectriaceae Petr. (1923)
             01 Genus Apiothyrium Petr. (1947)
             02 ?Genus Arecomyces K.D.Hyde (1996)
             03 Genus Arwidssonia B.Erikss. (1974)
             04 Genus Cesatiella Sacc. (1878)
             05 Genus Chamaeascus L. Holm, K. Holm & M.E.Barr (1993)
             06 Genus Charonectria Sacc. (1880)
             07 Genus Discosphaerina Höhn. (1917)
             08 Genus Exarmidium P.Karst. (1873)
             09 Genus Hyponectria Sacc. (1878)
             10 Genus Micronectria Speg. (1885), nom. dub.
             11 Genus Papilionovela Aptroot (1997)
             12 Genus Pellucida Dulym., Sivan., P.F. Cannon & Peerally (2001)
             13 Genus Physalospora Niessl (1876)
             14 Genus Pseudomassaria Jacz. (1894)
             15 Genus Rhachidicola O.E. Erikss. (2006), orth. inval. see Genus Rachidicola K.D.Hyde & J. Fröhl. (1995)
             16 ?Genus Xenothecium Höhn. (1919)