XIV CONTENTS. 



Page 



Sect. 4. INTERNAL ANATOMY OF ORGANS 625 



Structure of Stems f 525 



Roots 533 



Leaves, $c 539 



Floral Organs 540 



CHAPTER II. 



PHYSIOLOGY OF VEGETATION 542 



Sect. 1. GENERAL CONSIDERATIONS 542 



Sect. 2. CELL-LIFE 548 



Nutrition in Cellular Plants 551 



Sect. 3. FOOD OF PLANTS 555 



Sect. 4. ABSORPTION 562 



Sect. 5. DIFFUSION OF FLUIDS IN PLANTS 566 



Sect. 6. ELABORATION OF THE FOOD 574 



Sect. 7. SECRETION 570 



% 



CHAPTER III. 



GROWTH AND DEVELOPMENT OF ORGANS 584 



Sect. 1. DEVELOPMENT OF CELLS 584 



Sect. 2. DEVELOPMENT OF THE SEEDLING PLANT 591 



Sect. 3. DEVELOPMENT OF THE STEM 594 



Sect. 4. DEVELOPMENT OF THE ROOT 596 



Sect. 5. DEVELOPMENT OF THE LEAF-ORGANS 599 



Development of the Parts of the Floiver 600 



CHAPTER IV. 



GENERAL PHENOMENA CONNECTED WITH GROWTH 603 



Ejfect of External Agencies on Growth 603 



CHAPTER V. 



REPRODUCTION OF PLANTS 613 



Sect. 1. VEGETATIVE MULTIPLICATION 613 



Sect. 2. SEXUAL REPRODUCTION 620 



Sect. 3. REPRODUCTION OF PHANEROGAMIA 622 



Pollen-grains of Phanerogamia 623 



Pollen-grains of Gymnospermia 625 



Ovules of Phanerogamia 627 



Ovules of Angiospermia 630 



