SUBJECT INDEX 



517 



Chlorophyll, 78 



in stems, 193, 194 

 amount of, and assimilation, 

 134 sqq., 139 ; components 

 of, 128 ; destruction of, 133 ; 

 loss of, in parasites, 229 sqq. ; 

 loss of, in green plants, 243 ; 

 loss of, in saprophytes, 243 

 and absorption of light, 114, 

 129, 131 ; and heat rays, 131 

 a conservative feature, 132 ; 

 content of sun and shade 

 leaves, 153 ; formation, 133 

 Chloroplasts, 126 



movements of, 128 ; position 

 of, and gas supply, 127 ; 

 position of, and illumination, 

 127 

 Chresard, 54 

 Chromosomes, 315 sqq. 

 Cladodes, 194 

 Cleistogamy, 395 ^??- 

 Climbing plants, 295 sqq. 



mechanical features of, 299, 



304 

 Coefficient of humidity, 16 ; of 



wilting, 55, 57, 58 

 Collenchyma, 284 

 Colour of flowers, 360 sqq., 373 



absence of, in wind-pollinated 



flowers, 361, 376 

 Colour sense, of birds, 374 ; of 



insects, 361 sqq. 

 Compass plants, 125 

 Conductivity, specific, of wood, 188, 



190 

 Corolla, fall of, 402 

 Cross-fertilisation, 339 

 Cross-pollination, 381, 382, 398, 399 

 Cuticle, 84 



of aquatics, 89 ; of rain-forest 



plants, 88 

 and gaseous exchange, 86, 88, 



89 ; and transpiration, 88, 



176 



Death, causes of, 462 



Desert annuals, 447 



Desert plants, hairiness of, 184 ; 

 osmotic pressure of, 52 ; root 

 systems of, 33 ; transpiration 

 of, 212 ; water storage of, 161 



Dew, absorption of, 75 ; formation 

 of, and transpiration, 205 



Dichogamy, 382 



Dormancy, under Seeds 



Drip-tip, 203 



ECHARD, 54 



Elaiosome, 412, 413 



Embryo, liberation of, 433, 436 



adventitious, 327 

 Entomophily, 354, 355 

 Enzymes, of insectivorous plants, 



269 sqq. ; of parasites, 236 ; 



of resting buds, 454, 456 ; 



of seeds, 419, 424 

 Epiphytes, osmotic pressure of, 



239 ; root systems of, 71 

 nest, 73 

 Epitheme, 252 

 Etiolation, 437, 443 

 Evaporation, 164 

 Evolution and hybridisation, 322, 



463 ; and sex, 322 



Fertilisation, consequences of, 



321. 352, 399 

 and water supply, 316 

 chalazogamic, 353 ; porogamic, 



353 



Floral classes, 356 sqq. 



Floral mechanisms, 385 sqq. 



Flower, form of, and bird visits, 

 374 ; form of, and insect 

 visits, 357, 366, 380, 385 sqq. ; 

 movements of, 348 

 artificial, 367 ; cleistogamous, 

 395 ^QQ- ; inconspicuous, 376 ; 

 invisible, 368 



Forcing, 454, 456 



Forest, rain, climbers in, 296, 303 ; 

 leaf-fall in, 187, 453 ; trans- 

 piration in, 88, 203 

 savannah, leaf-fall in, 187, 448 

 thorn, leaf-fall in, 187, 193, 448 



Form sense of insects, 366 



Frost, protection against, 449 



Fruit, development of, 401 ; nature 

 and structure of, 400 

 explosive, 227 



Galls, 312 

 Gametophyte, 315 sqq. 



reduction of, 316 

 Garigue plants, hairiness of, 180 

 Gas, diffusion of, 85 ; in aquatic 



plants, 89 ; inside leaf, 85 ; 



through pores, 93 ; through 



protected stomata, 177 

 Gaseous exchange, of aquatics, iii ; 



of land plants, 84 sqq. ; of 



succulents, 113 

 Geitonogamy, 355 



2 L 2 



