CONTENTS. 



PART I. 

 MORPHOLOGY, PHYSIOLOGY, AND ECOLOGY. 



CHAPTER PAGE 



I. LABORATORY WORK i 



II. SEEDS AND SEEDLINGS 5 



III. ROOTS 28 



IV. BUDS AND STEMS . . . . . - 45 



V. LEAVES 75 



VI. GROWTH AND MOVEMENT 100 



VII. MODIFIED PARTS 134 



VIII. FLOWERS 147 



IX. DISPERSION OF FRUITS AND SEEDS .... 207 



X. STUDIES OF SELECTED SPERMATOPHYTES . . .218 



XI. SLIME MOULDS, BACTERIA, AND YEASTS . . .251 



XII. ALG.E, FUNGI, AND LICHENS 264 



XIII. MOSSES, FERNS, AND HORSETAILS .... 286 



XIV. ADAPTATION TO ENVIRONMENT . . . . . 303 

 XV. PLANTS OF DIFFERENT REGIONS . . . .328 



XVI. PLANTS OF PAST AGES 351 



XVII. CLASSIFICATION OF PLANTS . 359 



