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 Eubacteriales Buchanan 1917 nom. inval. see Order Eubacteriales Buchanan 1917 (Approved Lists 1980)
         Family Azotobacteriaceae (sic) "Pribram 1933" nom. inval. see Family Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980)
           1 Genus Azotobacter Beijerinck 1901 nom. inval. see Genus Azotobacter Beijerinck 1901 (Approved Lists 1980)