Phylum Ascomycota Caval.-Sm. (1998) - sac fungi
   Subphylum Pezizomycotina O.E. Erikss. & Winka (1997)
     Class Dothideomycetes O.E. Erikss. & Winka (1997)
       Subclass Dothideomycetidae P.M.Kirk, P.F. Cannon, J.C. David & Stalpers ex C.L. Schoch, Spatafora, Crous & Shoemaker (2007)
         Order Capnodiales Woron. (1925)
           Genus Perusta Egidi & Stielow (2014), incertae sedis