INDEX 



457 



elements, 92 



elm, 148, 188, 206, 328, 3sv 



embryo, 58, 86, 276, 325, 435, 436 



embryo-sac, 443, 444 



endogens, 184 



endosperm, 66, 326, 436, 437 



endosperm-nucleus, 444 



energy, 112 



English ivy, 128 



entire leaves, 207 



environment, 13s, 448 



enzymes, 350 



epicotyl, 342 



epidermis, 77, 80,83,163, 166, 234, 235,396 



epigean germination, 352 



epigyny, 291, 292 



Epilobium, 303 



epiphyte, 162 



Equisetales, 422 el seq. 



Equisetum arvense, 422 



Erigea, 161 



Erodium, 334 



Erythronium americanum, 261 



essential parts of flowers, 270 



evaporation, 114 



evening primrose, 331 



evergreens, 243, 24s, 431 



evolution, 265, 278, 294, 410, 413, 424, 



427, 43°, 436, 438 

 evolution of seeds, 430 

 evolution of sex, 367 

 excretions, 79, in 

 exogens, 184 



fall of leaves, 242 et seq. 



family, 44, 172 



fats, 229, 344 



feldspar, 100 



ferns, 156, 355, 408, 415 el seq. 



fertility, 102 el seq., 376 



fertilization, 275, 367 



fertilized egg, 275 



fertilizers, 102, 103, 345, 362, 392 



Fesluca, 306 



fibers, 173 



fibrous roots, 125 



field sorrel, 309 



fig, 316, 318, 333 



figwort, 3'9 



Filacales, 415 el seq. 



filament of stamen, 272 



of algae, 364, 36s 

 fireweed, 303 

 fission, 363 

 flaccid, 236 

 flax, S3 

 flies, 312 

 fleshy fruits, 333 

 floral numbers, 294 

 flower buds, 186 

 flowers, 38, 258 et seq., 424, 441 

 foliose liverworts, 403 

 food, 41, 42, 229, 343 el seq. 

 foot, 400, 401, 406 

 forestry, 32, 195 et seq. 

 forget-me-not, 319 

 fossil, 414, 415, 422 

 Fraxinus americana, 187, 280 

 frond, 416, 420 

 fruit, 62, 325 el seq. 

 fruit trees, 186 

 functions, 44 

 fungi, 362, 373 el seq. 

 fungi and soil, 391 et seq. 



gamete, 275, 367 



gametophyte, 402, 420, 421, 437, 443 



geitonogamy, 304 



gemmae, 398 



generation, 268, 402, 437 



genus, 44 



geotropism, 133, 136 



geranium, 57, 233, 295, 298 



Geranium maculatum, 270 



germination, 323, 348 et seq. 



gills, 380 



girdling, 179 



glaciation, 100 



glaucous, 212 



gluten, 341, 34s, 347 



goldenrod, 170, 29s 



gooseberry, 335 



grafting, 181 



grain, 327 



Graminece, 327 



grape, 128, 152, 213 



grass, 126, 139,141, 149,264,306,308,309 



grass family, 172, 184 



green algae, 371 



ground pine, 424, 423 



