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.
         1 Family Actinomycetaceae Buchanan 1918 nom. inval.
         2 Family Mycobacteriaceae Chester 1897 nom. inval.
         3 Family Streptomycetaceae Waksman and Henrici 1943 nom. inval.