INDEX 
Bulb, hyacinth, *79. 
Bulb, onion, 77. 
Bulblets, 375, 376. 
Bulrush, cross-section of stem of, 
*84, 
Burs, 381, 382, *583. 
Buttercup, leaf of, *135. 
Buttercup, study of flower of, 195. 
196. 
Butternut, buds of, *124. 
Cabbage, a bud, 123. 
Cactus, *80, *315. 
Cactus flower, transitions in, *208. 
Caladium, 76, *77. 
Calyx, *197. 
Cambium, *87, *88, *89, 95-100. 
Cambium-ring, 96, *97. 
Canna, parallel veining in, 136. 
Capsule, 223. | 
Carbon dioxide, absorption of, 166- 
168. 
Carbon dioxide, disposition of, 168, 
169. 
Carnivorous plants, 342—344*. 
Carpel, 198. 
Castor bean, germination of, *7. 
Castor-oil plant, early history of 
stem, *95. 
Castor-oil plant, 
bundle of, *95. 
Catharinea, *282. 
Catkin, *187. 
Celandine, leaf of, *134. 
Cell, 20, 21. 
Cell-contents, *19, *155, 180, *183, 
*184. 
Cell-contents, continuity of, 146. 
Cell-division, *188, *242, 245. 
Cell-multiplication in pond-scum, 
*242. 
fibro-vascular 
399 
Cell-sap, *183. 
Cell, simplest form of, 178, *179, 
180. 
Cell-wall, 178. 
Cells, isolated wood-, #91. 
Cellulose, a compound of carbon, 
hydrogen, and oxygen; the chief 
constituent of ordinary cell-walls, 
156, 171, 268. 
Central cylinder, *42. 
Central placenta, *205. 
Chara, *248, *249. 
Characez, 249, 250. 
Chemical changes in leaves before 
falling, 175, 176. 
Cherry, buds in axils of leaves, 
*122. 
Cherry twig, *63, *125. 
Chestnut fruit, *222. 
Chlorophycez, 232. 
Chlorophyll, 168, 169, 176. 
Chlorophyll bodies, *154, *155. 
Cilium, 180. 
Circulation of protoplasm, *184, 
185. 
Cladophyll, 79, *81. 
Class, 231. 
Classification, 228-234. 
Cleistogamous flowers, 369, *370. 
Clerodendron, *363. 
Climbing plants, 75-75*. 
Climbing shrubs, stem-structure, 
99, 100. 
Climbing stems, *73, *74, *76. 
Clinostat, *58, 59. 
Clover leaf, *144. 
Club-moss, study of, 291, *292. 
Cluster-cup, 259, *261. 
Coherent, 200. 
Cohesion, 204, *205. 
Collenchyma, *95. 
