CONTENTS. 



PREFACE 



PAGE 



iii 



PART I: THE VEGETATIVE BODY. 



INTRODUCTION : THE UNIT OF STRUCTURE 

 CHAPTER I. SINGLE-CELLED PLANTS AND COLONIES 

 II. LINEAR AND SUPERFICIAL AGGREGATES 



III. THE THALLUS OF THE HIGHER ALG/E . 



IV. THE FUNGUS BODY OF HYPHAL ELEMENTS . 



V. LIVERWORTS AND MOSSES . 



VI. FERNWORTS AND SEED PLANTS 



VII. THE ROOT 



VIII. THE SHOOT 



IX. THE STEM ....;.. 



X. THE LEAVES , 



8 



17 

 26 



39 

 49 

 60 



65 



82 



96 



"7 



PART II : PHYSIOLOGY. 

 CHAPTER XL INTRODUCTION: THE UNIT OF FUNCTION. . 143 



XII. THE MAINTENANCE OF BODILY FORM . . 147 



XIII. NUTRITION 151 



XIV. GROWTH 178 



XV. THE MOVEMENTS OF PLANTS l88 



PART III: REPRODUCTION. 



CHAPTER XVI. INTRODUCTION : REPRODUCTIVE STRUCTURES . 209 

 XVII. VEGETATIVE REPRODUCTION .... 211 



XVIII. SEXUAL REPRODUCTION 268 



ix 



