plant kingdom Haeckel (1866) - plants
   1 Division Protophyta Sachs 1874 - primitive plants
   2 Division Thallophyta Endl. (1836)
   3 Division Bryophyta A.Braun (1864) - mosses and liverworts see Phylum Bryophyta A.Braun (1864)
   4 Division Pteridophyta Schimp. (1879) see Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998)
   5 Division Spermatophyta Goebel (1882) see Phylum Spermatophyta Goebel (1882)