INDEX 
Coenocytes, structure of, 10, 11; 
skeleton of, 44; reproduction of, 
425,480 vt 
Cold, injurious effects of, 333 
Coleochete, 436 
Collenchyma, 25, 57 
Commensalism, 201 
Conducting system, 26 
Conjugation, 434 “ 
Constructive processes, 
264; katabolic, 266! 
Contact, stimulus of, 392 
Convolvulus, 396 
Copper, 135, 181 
Cork, 25, 54 
Cortex, 232 
Crassulacec, 298, 302 
Crystalloids, 243 
Crystals of protein, 243 
Cucumis, 25° 
Cucurbita, 92 
Cupulifera, 204 
Curvature (of stimulated roots), 393 
Cuscuta, 210, 350, 397 
Cuticle, 54; influence of, on tran- 
spiration, 24 
Cuticularisation, 24, 53, 
Cutin, 54, 55 
Cutleria, 432 
Cycas, antherozoids of, 446, 456 
Cyclamen, apheliotropism of pedun- 
cles of, 386 
Cystocarps, 436 
Cystoliths, 56, 279 
Cytase, 254, 257 
Cytoplasm, 5 
CzapPEK, 409 
anabolic, 
Darwin, on localisation of sensitive- 
ness, 387, 391; on tendrils, 394; 
on twining stems, 396; on Drosera, 
414 
Darwin, F., and Perrz on induced 
rhythm, 404 
Day and night, influence of alterna- 
tion of, 379 
Delphinium, 449 
D:rmatosomes, 49 
ascending sap, 223 
D-smids, 358, 388 
Desmodium gyrans, 362, 379 
Diageotropism, 390 
Diaheliotropism, 386 
Diastase, 254; function of, 255; in 
‘pollen, 454 
Disaster stage in mitosis, 424 
463 
Diatoms, 355 
Dichogamy, 451 
Diclinism, 452 
Digestion, 129; by Nepenthes, 196, 
253; by Drosophyllum, 197; by 
Pinguicula, 197;, by Dionea, 
200, 253; by Drosera, 199, 253 ; 
by Bacteria, 200; of reserve ma- 
terials, 248 
Dimorphism, 453 
D:cecious plants, 452 
Dionea, 197, 199, 253, 356, 377, 
392, 399, 407, 410, 413, AIT 
Dodder, see Cuscuta. 
Dorsiventral structures, 320 
Double fertilisation, 447 
Drosera, 199, 253, 356, 392, 399, 
402, 413, 414, 415 
Drosophyllum, 197 
Duramen, 77 
Ectocarpus, 432 
Ectoplasm, 5 
Egg apparatus, 441 
Elaioplasts, 246, 271 
Elodea, 6, 357 
Embryo, nutrition of, 125 
Embryo-sac, 440 
Emulsin, 254, 259 
Endodermis, 75 
Endo-skeleton, 34 
Endosperm, 440, 444 
Energy, expenditure of, in photosyn- 
thesis, 161, 281; expenditure of, 
in transpiration, 281, 287; in 
. constructive processes, 282; in 
growth, 282; in movement, 283 ; 
in production of heat, 283; of 
light 285; sources of, 285, 326 ; 
potential and kinetic forms of, 
288; liberation of, 288; distri- 
bution of, 289 
ENGELMANN, on evolution of oxygen 
in different parts of the spectrum, 
161; on purple bacteria, 163 
Entomophilous flowers, 449 
Environment, nature of, 336 
Enzymes, 130, 250 ; preparation of, 
262; secretion of, 268 ; in pollen, 
454 
Ephedra, 56 
Epidermis, characters of, 53 
Epinasty, 320 
Epiphytes, 201, 346, 
Epistrophe, 371 
Equatorial plate, 422 
