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 Enterobacteriaceae Rahn 1937 nom. cons., nom. inval. see Family Enterobacteriaceae Rahn 1937 nom. cons. (Approved Lists 1980)
           1 Genus Aerobacter Beijerinck 1900 nom. inval.
           2 Genus Escherichia Castellani and Chalmers 1919 nom. cons., nom. inval. see Genus Escherichia Castellani and Chalmers 1919 nom. cons. (Approved Lists 1980)
           3 Genus Klebsiella Trevisan 1885 nom. inval. see Genus Klebsiella Trevisan 1885 (Approved Lists 1980) nom. cons.
           4 Genus Paracolobactrum Borman et al. 1944 nom. inval.
           5 Genus Proteus Hauser 1885 nom. inval. see Genus Proteus Hauser 1885 (Approved Lists 1980) nom. cons.
           6 Genus Salmonella Lignieres 1900 nom. inval.
           7 Genus Shigella Castellani and Chalmers 1919 nom. inval.