CONTENTS. 



PART I. MORPHOLOGY. 



PAGE 



Introductory , . . 1 



CHAPTER I. GENERAL 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 32 



7. Cohesion and Adhesion . . . . ; . . .36 



CHAPTER II. THE SPECIAL MORPHOLOGY OF THE MEMBERS. 

 A. VEGETATIVE ORGANS. 



8. TheThallus '. ... 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 Organs ... 80 



18. Apospory and Apogamy .87 



19. The Fruit .,..;; . ' . .88 



20. The Seed . . .',.'. . . ., . . . ; " . . . 88 



PART ILTIIE 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 



