INDEX 
Chromosomes, 32, 51, 60, 92, 170, 275. 
Chytridiales, 63. 
Chytridium, 63. 
Cilia, 445 ; in action. 446. 
Cinchonin, 415. 
Circinate vernation, 159, 163, 176. 
Citric acid, 414. 
Citrus, oil receptacle, 340. 
Cladophora, 26, 27 ; walls, 308. 
Cladosiphonic, 159. 
Clavariales, 87. 
Cleistocarpae, 120. 
Cleistothecium, 74, 75. 
Clinostat, 462. 
Closterium, 37, 38. 
Club mosses, 122. 
Clustercup, 83, 84. 
Cocain, 415. 
Coccus, ii. 
Codein, 415. 
Codonotheca, 184. 
Coenocytes, 26, 27, 33, 34, 35, 36, 62. 
Cohesion theory, 351. 
Cold, cause of death, 483. 
Coleochaete, 31, 32. 
Coleoptile, and starch grains, 463. 
Colony, blue-green algae, 6 ; green algae, 17, 
21. 
Columella, Anthoceros, 108, IOQ; black mold, 
67, 68; mosses, 113, 118, IIQ, 120. 
Companion cells, 243; role, 394. 
Compass plants, 478. 
Concentration, 304. 
Concentric bundles, 125, 161. 
Concept acle, 50. 
Conducting system, 393 ; origin, 341. 
Conducting tissue, in style, 260. 
Confervales, 24 ; conclusions, 33. 
Conidia, 65, 74, 75. 
Coniferales, 212. 
Conjugates, 37 ; conclusions, 40. 
Conjugation, 16, 38, 39, 40. 
Contact movements, 454. 
Coprinus, 88, 8g. 
Coral fungi, 87. 
Corallina, 55. 
Cordaitaies, 203, 204, 205, 206. 
Cork, cambium, 240; cells, 240; rcle, 318. 
Corn, section of stem, 245. 
Cornaceae, 280. 
Corn smut, 81. 
Corolla, 252, 253. 
Correlations, 441. 
Cortex, angiosperms, 239, 240, 242; gymno- 
sperms, 192, 104, 210; kelps, 48 ; pteri- 
dophytes, 124, 125, 145, 150, 160, 161, 162. 
Crossing of pollen, 268. 
Crossotheca, 184. 
Cryptogams, 180 
Cup fungi, 71. 
Cupressineae, 220. 
Cupules, 98, 99. 
Curvatures, growth, 458 ; nastic, 442. 
Cuscuta, haustorium, 382. 
Cutin, 299. 
Cutleriaceae, 49. 
Cyanophyceae, 4. 
Cyatheaceae, 156. 
Cy cad ales, 190. 
Cycadella, 185. 
Cycadeoidea, habit, 185 ; strobilus, 186, 187 
188; synangia, 189. 
Cycadofilicales, 181. 
Cycadofilices, 181. 
Cycas, habit, 190; microsporophyll, 195, 
megasporophyll, 197; male gametophyte, 
199; embryo, 202. 
Cystocarp, 56, 57, 59. 
Cytase, 400. 
Cytoplasm, 2, 297. 
Dacromycetales, 86. 
Dacrydium, male gametophyte, 217 
Daily period, 436. 
Death, 480. 
Decay, 385. 
Deformities, 440. 
Dendroceros, 106. 
Dermatogen, 239, 240, 247, 465. 
Desmidiaceae, 37. 
Desmids, 37. 
Desmodium, leaflets, 453. 
Determinants, 291. 
Development, 417. 
Dextrinase, 400. 
Diageotropism, 467. 
Diaphragm, water ferns, 175. 
Diastase, 399. 
Diatomin, 53. 
Diatoms, 52, 54. 
Dichotomous, branching, 49; venation, 159, 
163, 164. 
Dicotyledons, 238 ; classification, 279 ; 
embryo, 271 ; vascular system, 243. 
Dictyotales, 55. 
Diffusion, 302, 304, 393 ; rate, 304. 
Digestion, 397 ; extra-cellular, 398. 
Dioecious, 30, 105. 
Dioecism, 30. 
Dionaea, 386, 387. 
Dioon, embryo sac, 199; habit, IQI ; ovule 
198; staminate strobilus, 195. 
Dioscorea, ocella, 479. 
Discomycetes, 72. 
Disease, 482. 
Disk Sowers, 282. 
