LIST OF ILLUSTRATIONS. 



FIG. 1'AGE 



1. Lamium album. (After Benthara) 1 



2. Flower of 1 



3. ,, Section of 1 



4. Drosera rotundifolia. (After Bentham) 4 



5. Lychnis vespertina 6 



6. Geranium sylvaticum 6 



7. Geranium pratense ; young flower. (After Hildebrand) 7 



8. older flower. ( ) 7 



9. Malva sylvestris. (After Sowerby) 14 



10. Malva rotundifolia. (After Sowerby) 14 



11. Stamens and Stigmas of Malva sylvestris. (After H. Miiller) . . 14 



12. Ditto of Malva rotundifolia ( ) . . 14 



13. Epilobium angustifolium. (After Sowerby) 15 



14. Epilobium parviflorum. ( ) 15 



15. Diagrammatic Section of Arum 17 



16. Salvia officinalis. Section of a young flower. (After Ogle) ... 19 



17. Visited by a Bee ( ) . . . 19 



18. Older Flower ( ,,) 19 



19. Stamens in their natural position ( ) . . . 21 



20. Stamens when moved by a Bee. ( ) . . . 21 



21. Wild Chervil Chcerophyllum sylvestre. (After Bentham) ... 22 



22. Floret of Chrysanthe mum parthenium, just opened. (After Ogle) . 23 



23. somewhat more advanced . 23 



24. with the stigmas expanded . 23 



25. Lotus corniculatus. (After Bentham) 25 



26. Flower of, seen from the side and in front 



(After H. Miiller) 26 



27. After removal of the standard 26 



28. After removal of the standard and wings . . 26 



29. After removal of one side of the keel .... 26 



