KINDS OF PLANTS 481 



DIVISION II BRYOPHYTES. Mosses and their allies. Archegonia but no 

 vascular system. 



A. Liverworts. 



B. Mosses. 



DIVISION III PTERIDOPHYTES. Ferns and their allies. Archegonia and 

 vascular system; no seeds. (Examples. Club mosses, quillworts, 

 scouring rushes (or horsetails), adder's-tongue, maidenhair.) 



DIVISION IV SPERMATOPHYTES. Seed-bearing plants. 



A. Gymnosperms. Naked-seed plants. (Examples. Sago palm, ginkgo, 



yews, larches, pines, cypress, sequoia.) 



B. Angiosperms. Inclosed-seed plants. 



1. Monocotyledons. (Examples. Cat-tail, water plantain, grasses, 



grains and sedges, palms, Indian turnip, rushes, spiderwort, 

 lilies, bananas, orchids.) 



2. Dicotyledons. 



a. Archichlamydeae. Flowers having no corolla or one of distinct 



petals. (Examples. Catkin-bearing trees (willows, wal- 

 nuts, oaks, beeches), smartweed, pink family, buttercup 

 family, water lilies, rose family, bean family, parsley 

 family.) 



b. Sympetalae. Flowers having corollas in which the petals are 



united. (Examples. Heath family, primrose family, 

 gentian family, mint family, morning-glory family, 

 plantain family, madders, honeysuckles, composites, 

 daisy, aster, sunflower, goldenrod, etc.) 



