VIU 



CONTENTS 



PART IT— THE LIFE-HISTORIES AND REPRODUCTION 

 OF PLANTS 



CHAPTER PAGE 



XIV. Simple Vegetable Organisms . . . i8o 



XV. Pond-scums, Seaweeds, etc. (Alg.e) . . 195 



XVI. Reproduction among the Alg^ . . . 212 



XVII. The Structure and Reproduction of the 



Fungi ....... 230 



XVIII. Physiology of Fungi, Lichens, Bacteria . 252 



XIX. Liverworts and Mosses .... 269 



XX. Ferns ........ 2S9 



XXI. Horsetails and Clubmosses .... 310 



XXII. The Cycads and Certain Extinct Seed-bearing 



Plants ....... 322 



XXIII. The Conifers 



XXIV. The Angiosperms . 

 XXV. Heredity and Evolution 



Appendix 



Index .... 



334 

 354 

 374 

 398 

 411 



