Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
   Subphylum Agaricomycotina Doweld (2001)
     Class Agaricomycetes Doweld (2001)
       Order Hysterangiales K. Hosaka & Castellano (2007)
         1 Family Gallaceaceae Locq. ex P.M.Kirk (2008)
         2 Family Hysterangiaceae E. Fisch. (1899)
         3 Family Mesophelliaceae Jülich (1982)
         4 Family Phallogastraceae Locq. (1974), nom. inval.
         5 Family Trappeaceae P.M.Kirk (2008)