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)
           Family Nectriaceae Tul. & C.Tul. (1865)
             01 Genus Albonectria Rossman & Samuels (1999)
             02 Genus Allonectella Petr. (1950)
             03 Genus Calonectria De Not. (1867)
             04 Genus Calostilbe Sacc. & P.Syd. (1902)
             05 ?Genus Chaetonectrioides Matsush. (1996)
             06 Genus Corallomycetella Henn. (1904)
             07 Genus Cosmospora Rabenh. (1862)
             08 Genus Gibberella Sacc. (1877)
             09 Genus Haematonectria Samuels & Nirenberg (1999)
             10 Genus Lanatonectria Samuels & Rossman (1999)
             11 Genus Leuconectria Rossman, Samuels & Lowen (1993)
             12 Genus Nectria (Fr.) Fr. (1849), nom. cons., nom. protect.
             13 Genus Nectricladiella Crous & C.L. Schoch (2000)
             14 Genus Neocosmospora E.F. Sm. (1899)
             15 Genus Neonectria Wollenw. (1917), nom. protect.
             16 Genus Ophionectria Sacc. (1878)
             17 ?Genus Persiciospora P.F. Cannon & D.Hawksw. (1982)
             18 Genus Pleogibberella Sacc. ex Berl. & Voglino (1886)
             19 Genus Pseudonectria Seaver (1909)
             20 Genus Rubrinectria Rossman & Samuels (1999)
             21 Genus Stalagmites Theiss. & Syd. (1914)
             22 Genus Viridispora Samuels & Rossman (1999)
             23 Genus Xenocalonectria Crous & C.L. Schoch (2000)
             24 Genus Xenonectriella Weese (1919)