454 



VEGETABLE PHYSIOLOGY 



Erythrophyll, 158 



Erythrozym, 262, 267 



Etiolation, 361 



Etiolin, 162; in photosynthesis, 

 171, 187 ; antecedent of chloro- 

 phyll, 280, 361 



Euonymus, 162, 280 



Euphorbia, 245 



EWART on inhibition of chlorophyll 

 apparatus, 171 



Exhaustion, 408 



Exodermis, 21 



Fat, 143 ; origin of, 183 ; as reserve 



material, 253 ; digestion of, 268 ; 



secretion of, 279 

 Fatigue, 408 

 Fermentation, 302, 326 

 Fermentative power of protoplasm, 



302 

 Ferments (soluble), see Enzymes ; 



(microbic), 302 

 Fern, skeleton of, 25, 26 

 Fertilisation, 425, 437 ; stimulating 



effect of, 445 

 Fimbristylis, 27, 29 

 Flaccidity, 64 ; removal by injecting 



water 91, by checking trans- 

 piration 96 

 Flagella, 2 

 Flowers, opening and closing of, 



315, 377 

 Fluorine, 188 

 Food, its nature, 132 ; formation of, 



155 ; conditions of continuous 



formation of, 236 

 Food materials, relation to food, 



135 ; mode of absorption, 140, 



142 



Formaldehyde, as stage in photosyn- 

 thesis, 165, 168 ; in construction 



of proteid, 179 

 Formic acid, 167 

 Free-cell formation, 416 

 Frost, action of, 328 

 Fruit, formation of, 446 

 Fiwacece, 425 

 Fungi, composition of cell-walls of, 



40 ; constructive powers of, 197 ; 



digestive powers of, 209 ; haus- 



toria of, 220 

 Funkia, 253 

 Fusarium, 264 



Gametangia, 423 

 Gametes, 421 

 Gametophyte, 426 



GARREAU on absorption of oxygen 



by plants, 119 

 Gaseous interchanges, 103 

 Gases, mode of absorption of, 103 ; 

 movements of, in plants, 113, 114 ; 

 currents of, affected by external 

 conditions, 116; absorption of, 

 151 



Gaultherase, 262, 267 

 GAUTIER on chlorophyll, 158 

 Gelatin, 173 

 Gemmae, 417 

 Gemmation, 413 

 Geotropism, 381, 395 

 Germination, of pollen, 443 ; of 



seeds, 447 



Ginkgo, antherozoids of, 436, 445 

 Glands, 259 

 Gliadin, 177, 252 

 Globoids, 251 

 Globulin, 175 

 Glochidia, 440 

 Glucase, 262, 264 



Glucosides as reserve material, 252 

 Gluten, 251 

 | Gluteniri, 177, 252 

 j Glycogen, 246 

 j Gonidangia, 419 

 Gonidia, 419 

 Grafting, 220 

 Grape-sugar as reserve material, 



247 

 Grasses, construction of stem of, 



109 



! Growing-points, 76, 309 

 ! Growth, 224, 305 ; localisation of, 

 306, 309, 313 ; conditions of, 309 ; 

 course of, 310 ; grand period of, 

 311, 312; of leaf, 313; daily 

 period of, 314, 354 

 Gums, 51 



Haustoria, 215, 219, 220, 343 



Health, 359, 366 



Heat, liberation of, 290 ; absorption 



of, 323; conduction of, 326; 



regulation of, 327 ; resistance to, 



329 



Heaths, rolled leaves of, 339 

 Hedysarum, 355 ; also see Desmo- 

 ' . dium 

 Helianthus, 91 

 Heliotropism, 378, 395, 396 

 Hepatica, 391 

 Heterospory, 429 

 Heterostylism, 442 

 i Honey, 439 

 i Hop, 388 



