Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Subclass Sordariomycetidae O.E. Erikss. & Winka (1997)
         Order Diaporthales Nannf. (1932)
           Family Diaporthaceae Höhn. ex Wehm. (1926)
             1 Genus Apioporthella Petr. (1929)
             2 Genus Diaporthe Nitschke (1870)
             3 Genus Mazzantia Mont. (1855)