CONTENTS 



CHAPTER 



I. Plants from Our Standpoint 



II. Plants as Living Things 



III. The Plant ant) Its Environment 



IV. The Cellular Structure of Plants 

 V. Leaves and Their Structures 



VI. The Manufacture of Food . 

 VII. The Release of Energy 

 VIII. Substances Made from Foods 

 IX. Leaves in Relation to Light 

 X. The Water Relations of Leaves 

 XL Physical Processes Involved in the Movement of 



Materials in Plants 



XII. The Water Balance in Plants . 



XIII. The Growth and Fall of Leaves 



XIV. The Stems of Plants 



XV. The External Features of Stems 



XVI. The Structure of Stems .... 

 XVII. Longevity of Herbaceous and Woody Stems 

 XVIII. The Growth of Stems 



XIX. The Movement and Accumulation of Materials in 



Stems 



XX. Ecological Types of Stems . 

 XXI. The Forms and Structures of Roots 

 XXII. The Processes of Roots 



XXIII. En\t:ronmental Factors Affecting Growth and Re- 



production .... 



XXIV. Vegetative Multiplication and Plant Propagation 

 XXV. Flowers and Flower Clusters 



XXVI. Sexual Reproduction in Flowering Plants 



XXVII. Fruits and Seeds 



XXVIII. Dormancy and Germination of Seeds . 



XXIX. Plant Breeding ...... 



XXX. Variations and Mutations 



383CX 



