266 
Bean-pod, study of, 183, 184. 
Bees, 162, 164, 165. 
Beet, 32. 
Beet leaf, 109. 
Begonia leaf, osmose in, 36. 
Bell-shaped, 146. 
Berry, 194. 
Berry, study of, 182. 
Biennial, 32, 33. 
Birch, branching of, 44. 
Bird-fertilized flowers, 168. 
Birds plant seeds, 189. 
Black walnut, twig of, 80. 
Bladder-wrack, 225, 226. 
Bleeding, 68. 
Botany, definition of, 1. 
Bract, 132. 
Branching, alternate, 41. 
Branching, opposite, 40, 41. 
Branch-spine, 208. 
Breathing-pore, 109, 110, 113, 114. 
Bryophytes, 216. 
Buckwheat, 19, 22. 
' Buds, 77-84. 
- Bud, horse-chestnut, 77, 78. 
- Buds, naked, 79. 
Bud-scales, 78. 
Bulb, 49, 74. 
Bulblets, 74.- 
Burs, 189-191. 
Buttercup, study of flower of, 140, 
141. 
Cabbage, a bud, 80. 
Cactus, 49, 50. 
Calyx, 142. 
Cambium, 59, 62. 
Capsule, 187. 
Carbon, fixation of, 117-119. 
Carbonic acid gas, 117-119. 
INDEX. 
Carnivorous plants, 104-107. 
Carpel, 148, 153, 154. 
Carpellary, pertaining to a carpel. 
Carrot, 32, 33. 
Castor bean, 5. 
Castor-oil plant, 
bundle of, 59. 
Castor-oil plant, early history of 
stem, 61. 
Catkin, 152, 133. 
Caulicle, 5, 15. 
Cell, 126. 
Cell-contents, 126. 
Cell-contents, continuity of, 56. 
Cell-division, 220. 
Cell wall, 126. 
Cellulose, 123. 
Centaurea, flowers and fruit, 179, 
180. 
Central placenta, 149. 
Chemical changes in leaves before 
falling, 124, 125. 
Cherry twig, 39. 
Chestnut fruit, 186. 
Chlorophyll, 111, 119. 
Chlorophyll bodies, 111. 
Cilium, 128. 
Circulation of protoplasm, 129, 130. 
Cladophyll, 50. 
Classification, 213-218. 
Cleft, deeply cut, like the hop leaf, 
Fig. 52, or the leaf of the com- 
pass-plant, Fig. 86. 
Clerodendron, 169. 
Climbing plants, 45, 46. 
Climates, unfavorable, 203. 
Cohesion, 146, 147. 
Coloration of autumn leaves, 125 
Colors of flowers, 163, 164. 
Common receptacle, 133, 134. 
fibro-vascular 
