plantenrijk Haeckel (1866) - plants [Division] Protophyta Sachs 1874 - primitive plants Class Schizomycetes Nägeli 1857 (Approved Lists 1980) - bacteria and related forms Order Pseudomonadales Orla-Jensen 1921 (Approved Lists 1980) Family Thiobacteriaceae see Family Thiotrichaceae 1 Genus Macromonas Utermöhl and Koppe 1924 (Approved Lists 1980)