Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Sordariomycetes O.E. Erikss. & Winka (1997)
       Family Apiosporaceae K.D.Hyde, J. Fröhl., Joanne E. Taylor & M.E.Barr (1998)
         Genus Apiospora Sacc. (1875) see Genus Arthrinium Kunze (1817), nom. sanct.