INDEX 
Carbon dioxide, disposition of, 137, 
138. 
Carnivorous plants, *118, *119, 
*120, *121, 122. 
Carpel, 158, *185, *186. 
Carrot, root, *307. 
Castor-oil plant, early history of 
stem of, *71. 
Catkin, App. I, *358. 
Celandine, leaf of, *99. 
Cell, 16, 17, 43-45*. 
Cell-contents, *17, #43. 
Cell-division, *218, *222, #245. 
Cell-multiplication in Spirogyra, 
*222. 
Cell-sap, *43, *46. 
Cell-wall, 17, 44, *218, #222. 
Cellulose, 44. 
Central cylinder, #36, *37. 
Central placenta, *155. 
Chemical changes in leaves before 
falling, 141. 
Cherry twig, *92. 
Chestnut fruit, *186. 
Chlorophyll, *129, 180, 138-140. 
Choripetalous, 151. 
Chorisepalous, 151. 
Cilium, *226, *232, *242. 
Citrous fruit hybrids, *320, 321. 
Cladophora, 212, 218. 
Cladophyll, 62, *63. 
Class, 209. 
Classification, 207-210. 
Cleistogamous flowers, 179, *180. 
Clerodendron, *175. 
Climbing plants, *56, *57. 
Clover leaf, *109. 
Club-mosses, 291, *292. 
Cluster-cup, *256. 
Cocoanut, *326. 
369 
Coffee, 326, #328. 
Coleochete, *306. 
Colors of flowers, 171, 172. 
Compass-plant, nearly vertical 
leaves of, 110, *111. 
Composite head, App. I, *359. 
Compound cyme, App. I, *360. 
Compound leaves, *103, 104. 
Compound pistil, 154, #155. 
Compound umbel, App. I, *359. 
Conceptacles, 231-233*. 
Concord grape, 309. 
Coniferous woods, 343, 344. 
Conjugating algz, 219-223*. 
Conjugation, 221-223*, *248. 
Connective, *153. 
Contractility, 45. 
Cork, *70, *73, 76, 84. 
Corn breeding, 313, 314. 
Corn, cross-section of stem of, 
#65. 
Corn, germination of, 6, 7. 
Corn, grain of, 13, #14. 
Corn, root-tip, section of, *36. 
Corn-stem, structure of, *65: 
Corolla, *148. 
Corymb, App. I, 361. 
Cotton, 341. 
Cotyledon, *5, *6. 
Cotyledon, disposition made of, 
24. 
Cotyledons, 
24. 
Crenate, App. I, *857. 
Cross-pollination, 168. 
Crow-berry, rolled-up leaf of, *117. 
Cryptogams. See Spore-plants. 
Cuspidate, App. I, *856. 
Cutting leaves, *126. 
Cyme, App. I, 361. 
thickened, use of, 
