x CONTENTS 



J-AOE 



B. The Tissues ..... 45 



a. Structure of the Stem . . .46 



a. The Vascular Bundles . . .48 



ft. Other Tissues of the Central Cylinder . 61 



y. The Cortex . . . .62 



*. The Epidermis . . , .62 



6. Structure of the Leaf . . ,64 



c. Structure of the Root . . 72 



d. Transition from Stem to Root . . 73 



e. Apical Development . . . .82 

 /. Secondary Growth in Thickness . . 90 

 g. Periderm ..... 96 

 h. Secondary Thickening in the Root . .93 



III. Internal Structure and Development of the Repro- 

 ductive Organs . . . . .103 

 a. Development of the Flower . . . 103 

 5. Structure of the Floral Envelopes . . 106 



c. Stamens ..... 109 



d. The Pistil . . . . .116 



e. Fertilisation. . . . ,122 

 /. Development of the Embryo . 130 



g. The Endosperm . . . .134 



h. The Ripe Seed . . . .135 



i. The Fruit . . . . .137 



k. Germination. . . . .133 



CHAPTER II 



Type II 



THE WHITE LILY (Lilium candidum, L.) 

 I. External Characters 



A. Vegetative Organs .... 142 



B. The Flowers 149 



