Basidiomycota R.T.Moore (1980) - basidiomycetes
   Agaricomycotina Doweld (2001)
     Tremellomycetes Doweld (2001)
       Holtermanniales Libkind, Wuczk., Turchetti & Boekhout (2011)
         1 Holtermanniaceae Redhead (2015)