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 Coronophorales Nannf. (1932)
           Family Nitschkiaceae Nannf. (1932)
             Genus Nitschkia G.H. Otth ex P.Karst. (1873)