452 
INDEX 
Ehrlich’s Anilin Water Gentian Vio¬ 
let, 226 
Elaeis guineensis, 300 
Elastica, 355 
Elaterinum, 401 
Elettaria Cardamomum, 304 
Elm Family, 319 
Embryo, 121 
Embryo-sac, 49, 55, 197 
maturation of,. 55 
Emulsin, 96 
Endocarp, 202 
Endodermis, 109, no 
Endospores, 220, 221 
Endosporium, 41 
Endothecium, 191 
Entada scandens, 207 
Enzyme, 94 
Enzymes, 94, 95 
classification of, 95, 96 
Epicalyx, 185 
Epicarp, 202 
Epidermal, outgrowths, 108-109 
papillae, 108 
scales, 109 
Epidermis, 106 
Epiphegus, 5 
Epithelium, 120 
Equatorial plate, 73 
Equisetineae, 289 
Equisetum, 290 
arvense, 291 
Ergot fungus, 265 
Erica, 379 
Ericaceae, 379 
Ericales, 379 
Erigeron canadensis, 407 
Eriodictyon, 5 
Eriodictyon californicum, 388 
trichomes of, 107 
Eriogonum, 321 
Erythraea Centaurium, 384 
Erythronium Americanum, life history 
of, 53-58 
Erythroxylaceae, 347 
Erythroxylon Coca, 348 
Eschscholtzia, 332 
Etaerio, 210 
Etiolin, 93 
Etiology, 2 
Eucalyptol, 375 
Eucalyptus, 374, 375 
globulus, 373, 375 
lamina, 172 
photomicrograph of trans. sect. 
leaf-blade, 173 
Kino, 375 
rostrata, 375 
Endorina, 232 
Eugenia aromatica, 374, 375 
Eugenol, 375 
Euonymus, 356 
Americanus, 356 
atropurpureus, 357 
Europaeus, 356 
Euonymus N. F., 357 
Fig. of flowering and fruiting 
branch, 357 
Fig. of bark in cross-section, 358 
Eupatorium, 406 
perfoliatum, 406 
Euphorbia, 355 
Pilulifera, 355 
Euphorbiaceae, 355 
Euphrasia, 392 
Eurotium, 260 
Exoascus, 251 
Exobasidiales, 273 
Exogonium Purga, 388 
Exosporium, 41 
Exothecium, 191 
Fabaceae, 341 
Fagaceae, 316 
Fagales, 316 
Fagot Cassia, 332 
Fagus grandifolia, 316 
Families, naming of, 7 
