304 



INDEX 



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 bairn (Monarda didymd), 



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. 



Cruciferse (Mustard family), 209. 

 Cruciflorae, 209. 

 Crustacea, 108. 

 Cup-fungi (Ascobolus, Peziza), 91, 



92, Fig. 24. 

 Cupuliferae, 281. 

 Currents (factors in distribution), 



229. 



Cuscuta (see also "Dodder"), 279. 

 Cuticle, 269. 

 Cutleria, 70. 

 Cyanophycese (see also "Schizo- 



phyceaa"), 36, 37,98. 

 Cyathus, 94, Fig. 25. 

 Cycads, Cycadaceae, 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. circinalis, 163, Fig. 40; C. 

 revoluta, 162, 163, Fig. 40. 

 Cyclantherae, 187. 

 Cynoglossum, 243, Fig. 54. 

 Cyperaceae, 188. 

 Cypress, 168. 



Cypripedium, 194, 234, Fig. 47. 

 Cystocarp (of Red Algae), 72, Fig. 



19. 

 Cystopus (see also "White-rust"), 



82 ; C. candidus, 82, Fig. 21. 

 Cytology, 7, 

 Cytoplasm, 4, 6. 



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, Desmidiaceae, 8, 26, 59, 60, 



85, Figs. 1, 13. 



Devonian formations, 147, 223, 225. 

 Diatomin, 65. 

 Diatoms, Diatomaceae, 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. 



Dionaea (see also " Venus's Fly- 

 trap"), 257. 



Diospyrinae (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 (Apocynaceae), 215. 



Dogwood family (see also " Cornus," 

 "Cornacese"), 212, 240, 246, 247, 

 Fig. 55. 



Dracaena, 191. 



Drosera (see also " Sundew"), 257, 

 258; D. longifoUa, 258, Fig. 58. 



Drought (effect on plants), 273, 274. 



