asexual fungi R.T.Moore (1980) - fungi
   Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
     Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
       Class Dothideomycetes O.E. Erikss. & Winka (1997)
         Subclass Pleosporomycetidae C.L. Schoch, Spatafora, Crous & Shoemaker (2007)
           Order Pleosporales Luttr. ex M.E.Barr (1987)
             Family Roussoellaceae Jian K. Liu, Phookamsak, D.Q. Dai & K.D.Hyde (2014)
               1 Anamorph genus Cytoplea Bizz. & Sacc. (1885)
               2 Genus Immotthia M.E.Barr (1987)
               3 Genus Roussoella Sacc. (1888)
               4 Genus Roussoellopsis I.Hino & Katum. (1965)