asexual fungi R.T.Moore (1980) - fungi
   Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
     Subphylum Pucciniomycotina R. Bauer, Begerow, J.P. Samp., M. Weiss & Oberw. (2006)
       Class Atractiellomycetes R. Bauer, Begerow, J.P. Samp., M. Weiss & Oberw. (2006)
         Order Atractiellales Oberw. & Bandoni (1982)
           1 Family Phleogenaceae Gäum. (1926)
           2 Family Saccoblastiaceae Jülich (1982) see Family Phleogenaceae Gäum. (1926)
           3 Anamorph genus Atractogloea Oberw. & Bandoni (1982), incertae sedis
           4 Anamorph genus Hobsonia Berk. ex Massee (1891), incertae sedis
           5 Anamorph genus Leucogloea R. Kirschner (2004), incertae sedis see Genus Helicogloea Pat. (1892)
           6 Anamorph genus Tricladiomyces Nawawi (1985), incertae sedis