304 
Cotyledon, 130, 131, 145, 170, 171, 182, 
184, 185, 199, 200, 204. 
Crab-apple, 89. 
Cranberry, 214. 
Creepers (see also ‘Climbing 
Plants,” ‘“Liana’’), 276. 
Cretaceous formations, 227, 228. 
Crimson balm (Monarda didyma), 
249. 
Crimson currant (Ribes speciosum), 
249. 
Cross-fertilization, 195, 208, 214, 244, 
245, 246, 247, 249, 250, 251, 252, 253, 
254, 255, 256. 
Croton, 210. 
Cruciferz (Mustard family), 209. 
Cruciflorz, 209. 
Crustacea, 108. 
Cup-fungi (Ascobolus, Peziza), 91, 
92, Fig. 24. 
Cupulifere, 281. 
Currents (factors in distribution), 
229. 
Cuscuta (see also ‘‘ Dodder’’), 279. 
Cuticle, 269. 
Cutleria, 70. 
Cyanophyceze (see also 
phycex ’’), 36, 37, 98. 
Cyathus, 94, Fig. 25. 
Cycads, Cycadacee, 155, 156, 157, 161, 
162, 163, 165, 166, 167, 168, 169, 175, 
176, 196, 226, 292, 293; structure of, 
162, 163, 164, 165 ; fossil C., 165, 226; 
Fig. 40. 
Cycas, 160, 161, 162, 163, 166, 168, 169 ; 
C. cireinalis, 163, Fig. 40; C. 
revoluta, 162, 163, Fig. 40. 
Cyclanthere, 187. 
Cynoglossum, 243, Fig. 54. 
Cyperacee, 188. 
Cypress, 168. 
Cypripedium, 194, 234, Fig. 47. 
Cystocarp (of Red Algz), 72, Fig. 
19. 
Cystopus (see also ‘‘ White-rust’’), 
82; C. candidus, 82, Fig. 21. 
Cytology, 7. 
Cytoplasm, 4, 6. 
“ Schizo- 
INDEX 
D 
Dactylis, 185, Fig. 45. 
Daisy, 216. 
Dandelion, 91, 215, 216, 241, Fig. 53. 
Darwin, 257. 
Dead-nettle (Lamium), 215, Fig. 53. 
Deciduous trees, 238. 
Decomposition (due to bacteria), 35, 
36. 
Delphinium (see also “‘ Larkspur ’’), 
207, 208, 247, Fig. 50. 
Desert plants (see also “‘ Xero- 
phytes ’’), 18, 204, 260, 271. 
Deserts, 229, 233, 234, 237, 271, 297. 
Desmid, Desmidiacez, 8, 26, 59, 60, 
85, Figs. 1, 13. 
Devonian formations, 147, 223, 225. 
Diatomin, 65. 
Diatoms, Diatomaceer, 2, 14, 65, 66, 
222, Fig. 15. 
Diclinous flowers, 206. 
Dicotyledons, 141, 162, 168, 173, 183, 
187, 190, 196, 199, 200, 201, 202, 203, 
204, 205, 206, 212, 217, 218, 219, 228, 
229, 267, 268, 269; classification of, 
205, 212; embryo of, 199, 203; 
flowers of, 206, 216; structure of, 
200, 201, 202. 
Digitalis (see also ‘‘ Foxglove ’’), 253. 
Dinoflagellata, 76. 
Dionza (see also ‘“‘Venus’s Fly- 
trap’’), 257. 
Diospyrine (Persimmon family), 
214. 
Disease germs, 36. 
Distribution of plants, 220, 229. 
Dock (Rumex), 241. 
Dodder (Cuscuta), 12, 205, 278, 279, 
288. 
Dodecatheon, 213, Fig. 52. 
Dogbane family (Apocynacez), 215. 
Dogwood family (see also “‘ Cornus,” 
“‘Cornacexw ’’), 212, 240, 246, 247, 
Fig. 55. 
Dracena, 191. 
Drosera (see also ‘‘ Sundew”’), 257, 
258; D. longifolia, 258, Fig. 58. 
Drought (effect on plants), 273, 274. 
