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 Appendicospora K.D.Hyde (1995)