l6 CONTENTS 



CHAPTER PAGE 



XIV. The Simplest Land Plants — Liverworts 



AND Mosses. The Pteridophyta . .231 



XV. The Seed Plants : Forms and Life Histories 254 



XVI. The Tissue Elements of Seed Plants . . 270 



XVII. The Root 288 



XVIII. The Foliage Leaf 302 



XIX. The Primary Stem 315 



XX. The Woody Stem . ' 328 



XXI. The Flower 344 



XXII. The Fruit 361 



XXIII. The Seed and its Germination .... 375 



3^X1 V. Conclusion 389 



Index 405 



