viii CONTENTS 



* "% " 



PART II. THE LIFE-HISTORIES AND REPRODUCTION 



OF PLANTS 



CHAPTER PAGE 



XIV. SIMPLE VEGETABLE ORGANISMS . . . 180 



XV. POND-SCUMS, SEAWEEDS, ETC. (ALG.E) r / . 195 



XVI. REPRODUCTION AMONG THE ALG^E . I/ .212 



XVII. THE STRUCTURE AND REPRODUCTION OF THE 



FUNGJ . . . . . . . 230 



XVIII. PHYSIOLOGY OF FUNGI, LICHENS, BACTERIA . 252 



/ 



XIX. LIVERWORTS AND MOSSES f/ . . . . 269 



XX. FERNS . . "/ ; . (Y . . . . 289 



XXI. HORSETAILS AND CLUBMOSSES . . . . 310 



XXII. THE CYC ADS AND CERTAIN EXTINCT SEED-BEARING 



PLANTS . ..__ 322 



XXIII. THE CONIFERS 334 



XXIV. THE ANGIOSPERMS . ]/ . . . . . 354 

 XXV. HEREDITY AND EVOLUTION ]/ . . . . 374 



APPENDIX . . . . . . 398 



INDEX . . . . . . . . 411 



