CONTENTS 



CHAPTER I. THE SEED 



I. The Storage of Food in Seeds 

 11. Some Physiological Properties ok Seeds 



III. Types of Seeds 



IV. Seed Dispersal 



Field Work 



PAGE 

 1 



10 

 12 

 21 



28 



CHAPTER 11. GEKMIXATIOX AND GROWTH 



I. Processes accompanying Germination 

 n. Conditions of Germination 



III. Development of the Seedling 



IV. Growth 



Field AVork 



CHAPTER ni. THE ROOT 



I. Osmosis and the Action of the Cell . 



11. jMineral Nutriments absorbed by Plants 



III. Structure of the Root .... 



IV. The AVork of Roots 



V. Different Forms of Roots 



Field AVork 



•CHAPTER lA^ THE STEM 



I. Forms and Growth of Stems . 

 II. Modifications of the Stem 

 in. Stem Structure 



A. MoNoroTYLs 



B. Herbaceous Dicotyls 



C. A\''oODY Stemmed Dicotyls 



vii 



06 

 102 

 107 



