CONTENTS. 



PART I. THE MORPHOLOGY OF PLANTS. 



PAGE 



Introductory ,1 



CHAPTER L GENERAI, MORPHOLOGY. 



1. The Segmentation of the Body , 5 



2. Symmetry of the Body and of the Members ..... 7 



3. The Development of the Body and of the Members , . . 13 



4. Arrangement of Lateral Members on a Common Axis .... 23 



5. The Mutual Relations of Dissimilar Secondary Members ... 31 



6. Branch-Systems ........ f . . 32 



7. Cohesion and Adhesion ..,,,.... 36 



CHAPTER II. THE SPECIAL MORPHOLOGY OF THE MEMBERS. 

 A. VEGETATIVE ORGANS. 



8. The Thallus . , 37 



9. The Thalloid Shoot . 38 



10. The Leafy Shoot ..... 38 



11. The Stem . . , ..... 44 



12. The Leaf . 45 



13. The Root . 61 



14. Hairs and Emergences 64 



B. REPRODUCTIVE ORGANS. 



15. Reproduction 67 



16. General Morphology of the Asexual Reproductive Organs ... 70 



17. General Morphology of the Sexual Reproductive Orgaus ... 80 



18. Apospory and Apogamy 87 



19. The Fruit 88 



20. The Seed 88 



PART XLTHE INTIMATE STRUCTURE OF PLANTS. 



(ANATOMY AND HISTOLOGY). 



21. Introductory .89 



CHAPTER I. THE CELL. 



22. The Structure and Form of the Cell 93 



23. The Protoplasm 95 



24. The Cell-Wall 103 



25. Cell-Contents 108 



26. Cell-Formation 114 



vii 



