LIST OF ILLUSTRATIONS. 



FIG. PACK 



24. Right hind-leg of Halictus (after M tiller) . . 20 



25. Left hind-leg of Panurgus banksianus ,, ,, . 21 



26. Right hind-leg of Anthophora bimaculata ,, ,. . .21 



27. Right hind-leg of Bombus scrimskiranus ,, ,, . .22 



28. Right hind- leg of Hive-bee ,, ,. . . 22 



29. Diagrammatic section of Arum 32 



30. Pink in the first (male condition) ...... 35 



31. Pink in the second condition, with mature stigmas . . 3^ 



32. Thymus serpyllum, in the first condition, with ripe stamens 



(after Miiller) . . 36 



33. Thymus serpyUum, in the second condition, with mature 



stigma 36 



34. Myosotis versicolor, young flower (from Nature) . . . 36 



35. Myosotis versicolor (older flower) 36 



36. Cleistogamous flower of Lamium amplexicaule (after Hilde- 



brand) 37 



37. Section of ditto (after Hildebrard) . . . . .37 



38. Primula (long-styled form) 38 



39. Primula (short-styled form) 3& 



40. Geranium pratense (after Bentham) 4 r 



41. Geranium pratense, young flower (after Hildebrand) . . 42 

 a.2. Gfratiium pratense (older flower) ,, . .42 



43. Maiva sylvestris (after Sower by; . ... 45 



44. Malva rotundifolia ,, 45 



45. Stamens and stigmas of Malva sylvestris (after Miiller) . 46 



46. Stamens and stigmas of Malva rotundifolia ,, . 46 



47. Epilobium angustifolium (after Sowerby) .... 47 



48. Epilobium parviflorum ,, ,, . . . .47 



49. Corolla of a, Geranium pratense ; b, G. pyrenaicum ; c y G. 



molle ; d, G.pusillum 4& 



50. Lychnis -vespertina (after Bentham) 5 



51. A young flower of Delphinium elatum, seen from in front, and 



after removal of the calyx (after Miiller) 57 



52. Section of the same flower seen from the side ,, 57 



53. An older flower, seen from front, after removing calyx ,, ,, 57 



54. Section of the same flower, seen from the side ,, ,, 57 



55. Flower seen from above ,, ,, 59 



56. Pistil with two stamens, after the visit of an insect ,, ,, 59 



57. Section of a flower of Viola canina 65 



58. Stamen of a flower of Viola canina 65 



