organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukaryota Chatton, 1925 - eukaryotes
     Kingdom Fungi R.T.Moore (1980) - fungi
       Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes
         Class Basidiomycetes G.Winter (1880)
           Subclass Agaricomycetidae Locq. ex Parmasto (1986)
             Order Boletales E.-J. Gilbert (1931)
               01 Genus Endogonopsis R.Heim (1966)
               02 Genus Lamyxis Raf. (1820), nom. dub.
               03 Family Boletaceae Chevall. (1826)
               04 Family Boletinellaceae P.M.Kirk, P.F. Cannon & J.C. David (2001)
               05 Family Coniophoraceae Ulbr. (1928)
               06 Family Diplocystaceae Kreisel (1974), orth. inval. see Family Diplocystidiaceae Kreisel (1974), orth. inval.
               07 Family Gasterellaceae Zeller (1948)
               08 Family Gastrosporiaceae Pilát (1934)
               09 Family Gomphidiaceae Maire ex Jülich (1982)
               10 Family Gyroporaceae Locq. (1984), nom. inval. see Family Gyroporaceae Manfr. Binder & Bresinsky (2002)
               11 Family Hygrophoropsidaceae Kühner (1980)
               12 Family Hymenogasteraceae see Family Hymenogastraceae De Toni (1888)
               13 Family Leucogastraceae Moreau ex Fogel (1979) see Family Albatrellaceae Nuss (1980)
               14 Family Melanogastraceae E. Fisch. (1933) see Family Paxillaceae Lotsy (1907)
               15 Family Octavianinaceae
               16 Family Paxillaceae Lotsy (1907)
               17 Family Protogastraceae Zeller (1934)
               18 Family Rhizopogonaceae Gäum. & C.W.Dodge (1928)
               19 Family Sclerodermataceae Corda (1842)
               20 Family Suillaceae Besl & Bresinsky (1997)