DRAWINGS IN THE TEXT 



XI 



FIG. 



33. Mycorhiza of Black Bryony . 



34. Bacterial Nodules on Roots . 



35. Infection of Root Hairs of Phyllocladus 



36. Bacterial Nodules on Leaves 



37. Aldrovanda vesiculosa . 



38. Pitcher of Nepenthes 



39. Pitcher of Sarracenia . 



40. Bladderworts .... 



41. Bladder Leaf of Genlisea 



42. Contractile Roots . 



43. Arrangement of Mechanical Tissues 



44. Shoot Tendrils 



45. Leaf Tendrils .... 



46. Hook Tendrils and Root Tendrils 



47. Stems of Lianas 



48. Endothecium of Lilium candidum 



49. Angrcecum sesquipedale . . 



50. CUCKOO-FINT .... 



51. Honey Guides of Viola cornuta 



52. Knoll's Artificial Flower 



53. Erythrina indica 



54. Pollination of Sage 



55. Pollination of Ribwort Plantain 



56. Flowers of Oat 



57. Pollination of Monkshood 



58. Erica Tetralix .... 



59. Primula veris .... 



60. Cistus salvif alius 



61. Cleistogamous Flowers . 



62. Seeds with Arils 



63. Scarlet Pimpernel . 



64. Campanula Capsules 



65. Capsules of Lychnis Flos-jovis 



66. Dispersal of Fruits and Seeds 



67. Growth Curves 



68. Thuja, Transition from Youth Leaf-form 



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