plantenrijk Haeckel (1866) - plants
   [Division] Protophyta Sachs 1874 - primitive plants
     Class Schizomycetes Nägeli 1857 (Approved Lists 1980) - bacteria and related forms
       Order Eubacteriales Buchanan 1917 (Approved Lists 1980) see Order Clostridiales Prévot 1953 (Approved Lists 1980)
         01 Family Achromobacteriaceae see Family Alcaligenaceae De Ley et al. 1986
         02 Family Azotobacteriaceae see Family Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980)
         03 Family Bacillaceae Fischer 1895 (Approved Lists 1980)
         04 Family Corynebacteriaceae Lehmann and Neumann 1907 (Approved Lists 1980)
         05 Family Enterobacteriaceae Rahn 1937 (Approved Lists 1980)
         06 Family Lactobacteriaceae
         07 Family Neisseriaceae Prévot 1933 (Approved Lists 1980)
         08 Family Parvobacteriaceae
         09 Family Proprionibacteriaceae
         10 Family Rhizobiaceae Conn 1938 (Approved Lists 1980)