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 Xylariomycetidae O.E. Erikss. & Winka (1997)
             Order Xylariales Nannf. (1932)
               1 Genus Xylaria Hill ex Schrank (1789), nom. cons.
               2 Genus Hypoxylon Bull. (1791), nom. cons.
               3 Genus Anthostomella Sacc. (1875)
               4 Genus Diatrype Fr. (1849)
               5 Genus Graphostroma Piroz. (1974)