LIST OF ILLUSTRATIONS. 



FIG. PAGE 



1. Pleurococcus vulgaris , . . 12 



2. Facus vesiculosus ........ 95 



3. Maize (Zea mays) . 19 



4. Hazel ( Corylus avellana) . . . . . . .128 



5. Melon leaf .......... 101 



6. Honeysuckle (Lonicera glauca) 29 



7. Diagram of typical flower . 31 



8. Cell of celandine . . ... . . . -33 



9. Cells of beet * -36 



10. Cactus (E cliinocactus decaisneanus) 37 



11. Epidermis showing stomata ...... 39 



12. Epidermis of Oycas revoluta ...... 40 



13. Palm stem, diagram of 43 



14. SeqfortJiia elegans ........ 46 



15. Section of melon stem ....... 47 



1 6. Section of maple stem 49 



17. Section of spiderwort stem 50 



1 8. Section of stem of Bcehmeria argentea . . . 52 



19. Cell of Vallisneria spiralis ....... 63 



20. Starch of potato (i) ; of tapioca (2) 64 



21. Venus's fly-trap (Dioncea muscipula) 73 



22. Pitcher-plant (Geplialotus follicularis) .... 75 



23. Pitcher-plant (Nepenthes gracilis) . . . . 77 



24. Pucciftia graminis . 85 



25. Lepidodendron trunk 190 



