X BRITISH PLANTS 



Via. PAGE 



24. Leaf of Wood-Sorrel ..-.-- 71 



25. Transverse Section of Sun-Leaf of Whortleberry ( Vaccinium 



Myrtaius) .... - 72 



26. Transverse Section of Shade-Leaf of Whortleberry - - 73 



27. Bird's-Foot Trefoil (Lotus corniculatus), showing Root. 



Nodules - - - 95 



28. Underground Rhizome of Couch-Grass - . - 110 



29. Underground Rhizome of Mint - - - . 1 10 



30. Basal Part of Potato Plant - - - - - 111 



31. Swede, showing Tuberous Hypocotyl - - - 112 



32. Kohlrabi, showing Tuberous Stem bearing Leaf .Scars . 112 



33. False Oat.Grass (Arrhenatherum avenaceum) - - 113 



34. Convolvulus (Bindweed), twining Counter.Clockwise - 117 



35. Hop, twining Clockwise - - - 117 



36. Passion-Flower . - . 118 



37. Stem-Tendrils of .4TOj)eZopsis FeiteAw, showing Suckers 119 



38. Everlasting Pea, with Leaf -Tendrils and Winged Stem - 120 



39. Apex of a Root invested with a Mycorhiza - - 124 



40. Corallorhiza innata (Coral-Root Orchid) - - 125 



41. LatkrcBa squamaria (Toothwort), showing Underground Shoot 



bearing Scale-Leaves, attached to the Roots of Hazel by 



Absorbing Suckers - - 127 



42. Cvscuia (Dodder) growing on Hop - 128 



43. Mistletoe attached by Haustoria to Branch of a Tree, Both 



seen in Section . ... 129 



44. Drosera longifolia (Sundew) - - - 130 



45. Pinguicvla vulgaris (Butterwort) . - 131 



46. Utricularia vulgaris (Bladderwort), showing Bladders on 



Submerged dissected Leaves and absence of Roots . 132 



47. Acorn with Hard Cupule . - 137 



48. Edible Chestnut, with Three Nuts enclosed in Spiny Cupule - 137 



49. Stem of Barberry with Leaf-Spines 141 



50. Ealse Acacia (Bdbinia Pseudacacia) with Spiny Stipules 141 



51. Stinging Hair of Nettle - . 141 



52. Longitudinal Section of Albuminous Seed of Onion - - 146 



53. Four-Seeded Drupe of Holly - 147 



54. Longitudinal Section of Albuminous Seed of Poppy 147 

 65. Longitudinal Section of Fruit of Garden Nasturtium, showing 



Exalbuminous Seed . - . 147 



56. Ruimer of the Strawberry .... 155 



67. Sucker of Elm .... 155 



58. Houseleek, with Offsets .... isg 



59. TuHp Bulb out longitudinally • . - 157 



60. Narcissus Btdb out longitudinally .... 157 



61. Crocus Corm in Resting Condition, with Enveloping Scale- 



Leaves removed to show Solid Stem - . 158 



