Kingdom Fungi R.T.Moore (1980) - fungi
   Subkingdom Dikarya Hibbett, T.Y. James & Vilgalys (2007)
     Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
       Subphylum Agaricomycotina Doweld (2001)
         Class Agaricomycetes Doweld (2001)
           Order Auriculariales Bromhead (1840), incertae sedis
             1 Genus Auricularia Bull. (1780)
             2 Genus Exidia Fr. (1822), nom. sanct.
             3 Genus Bourdotia (Bres.) Bres. & Torrend (1913)