LIST OF ILLUSTRATIONS. 



"'■O- . PAOB 



1. Lamium album i 



2. Flower of Lamium album 2 



3. Section of ditto .... 2 



4. Drosera rotundifolia 4 



5. Geranium ^atense (young flpwer) .... 8 



6. Geranium pratense (older flower) 8 



7. Malva sylvestris .... 14 



8. Malva rotundifolia 14 



9. Stamens and stigmas of Malva sylvestns 15 



10. Ditto of Malva rotundifolia ..15 



11. Epilobium angustifolium 16 



12. Epilobium parvifiorum 16 



13. Diagrammatic section of Arum 18 



14. Salvia officinalis. Section of a young flower 21 



15. Ditto, visited by a Bee 21 



16. Ditto, older flower 21 



17. Stamens in their natural position 22 



18. Stamens when moved by a Bee 22 



19. Wild Chervil (Cheerophyllum sylvestre) 23 



20. Floret of Chrysanthemum parthenium, just opened 26 



21. Ditto, somewhat more advanced 26 



22. Ditto, with the stigmas expanded . . . 26 



23. Lotus corniculatus ... 27 



24. Flower of Z»/»jfor«!b«to«j seen from the side and in froi\t 29 



25. Ditto, after removal of the standard 29 



26. Ditto, after removal of the standard and wings 29 



27. Ditto, after removal of one side of the keel 29 



28. Terminal portion of Fig. 27 more magnified iq 



29. Primula (long-styied form) jf 



