INDEX 



Dodders, 472. 

 Dorsiventrality, 437. 

 Dorycordaites, 204. 

 Dotted ducts, 241, 243. 

 Double fertilization, 269. 

 Downy mildews, 65. 

 Drosera, 387, 454- 



Ear fungi, 86. 



Earth star, 90. 



Ebenales, 281. 



Ecology, 295. 



Ectocarpus, 45. 



Ectoplast, 306. 



Efficiency, 371. 



Egg, thallophytes, 17, 18, 19, 28, 30, 32, 36, 

 51, 64; bryophytes, 96, 107, 118; pteri- 

 dophytes, 730, 137, 140, 154, 168, 179; 

 spermatophytes, 198, 216, 217, 226, 265, 

 266, 269. n 



Egg apparatus, 265. 



Eichhornia, megaspore tetrad, 263. 



Elaterophore, 103. 



Elaters, 100. 



Electric waves, 438. 



Electrotropism, 479. 



Eligulatae, 132. 



Embryo, angiosperms, 271, 272, 273, 274, 

 275; Botrychium, 153, 154; Equisetum, 

 149; ferns, 168, 169; gymnosperms, 189, 

 200, 201, 202, 211, 212, 218, 225, 226, 227, 

 236, 2 37> Isoetes, 141 ; Lycopodium, 130, 

 131; Selaginella, 137. 



Embryo sac, 197, 198, 199, 234, 261, 264, 265, 

 266. 



Endarch, 157. 



Endodermis, 240. 



Endogenous, 250 ; root branches, 248. 



Endosperm, 202, 211, 223, 270. 



Endothecium, anthers, 257, 258, 259; bryo- 

 phytes, 95, 97, 99, 108, 113, 115, 118, 119. 



Energy, 368 ; absorbed, 370. 



Entomophthorales, 68. 



Environment, 284. 



Enzymes, 39 ; carbohydrate, 399 ; fat, 400 ; 

 glucoside, 400 ; protein, 401. 



Ephedra, archegonia, 233; embryo, 236, 

 237; habit, 228; male gametophyte, 235. 



Epidermis, angiosperms, 239, 240, 242, 248, 

 250, 251, 319; bryophytes, 94, 98, 109, 

 118, 120; pteridophytes, 145, 160, 161. 



Epigyny, 255. 



Epinasty, 442. 



Epistrophe, 450. 



Epithem, 332. 



Equilibrium, position of, 463. 



Equisetales, 143 ; conclusions, 149. 



Equisetum, 143 ; antheridium, 148; embryo, 



149; gametophyte, 147; habit, 144; 



sporangium, 146; stem section, 145. 

 Ergot fungus, 77. 

 Ericales, 281. 

 Erysiphaceae, 75. 

 Erysiphe, haustorium, 381. 

 Etiolin, 367. 

 Eudorina, 17, 18. 

 Euglena, 20. 

 Eumycetes, 62. 

 Eurotium, 74. 

 Eusporangiates, 126. 

 Evaporation, 323. 

 Evolution, 283. 

 Exarch, 157. 

 Excitability, 434. 

 Exine, 147, 258. 

 Exoascus, 71. 

 Exobasidiales, 86. 



Exogenous, origin of branches, 419. 

 Exudation, 332, 333; cause, 335. 



Fagus, mycorhiza, 382. 

 Farinales, 278. 

 Fat enzymes, 400. 

 Fatigue, 432. 

 Fats, 360, 391. 



Fermentation, 385, 409; acetic, 411; alco- 

 holic, 409; butyric, 411 ; lactic, 410. 

 .terns, 155. 

 "ertilization, gymnosperms, 201, 217, 215, 



277, 225, 226, 235, 268, 269; mosses, 116; 



pteridophytes, 136, 168; thallophytes, 18, 



28, 66. 



?icus, leaf skeleton, 343. 

 filament, of anther, 256, 257. 

 nlicales, 155. 



"ilicineae, 155 ; conclusions, 170. 

 ? ilmy ferns, 155. 

 Flagella, 445. 

 lagellates, 20. 

 Horideae, 55. 

 r lower, 1 80, 251. 

 lowering plants, 180. 

 Huorescence, 370. 

 Flytrap, 386, 387. 

 r ood, 356 ; and growth, 363 ; source of 



energy, 363 ; storage, 388 ; translocation, 



388. 

 bot, bryophytes, 100, 103, 108, 109, 113, 



774; pteridophytes, 130, '737, 137, 141, 



149, 154, 168. 

 'ormaldehyde, 360. 

 "orm and light, 437. 

 r ormative stimuli, 435. 

 fragmentation, blue-green algae, 7. 

 friction, as stimulus, 470. 

 Fronds, 159. 



