plantenrijk Haeckel (1866) - plants
   [Division] Protophyta Sachs (1874) - primitive plants
     Class Schizomycetes Nägeli 1857 nom. inval. - bacteria and related forms see Class Schizomycetes Nägeli 1857 (Approved Lists 1980) nom. illeg., nom. rej.
       Order Actinomycetales Buchanan 1917 nom. inval.
         Family Actinomycetaceae Buchanan 1918 nom. inval.
           1 Genus Actinomyces Harz 1877 nom. inval.
           2 Genus Nocardia Trevisan 1889 nom. inval.