450 



GENERAL BOTANY 



Darwin, experiments in crossing, 175- 

 180 



Darwin, experiments with roots, 34* 



Decay, 255 



Deciduous trees, 380 



Dehiscence of anther, 162* 



Dehiscent fruits, 364*, 365 



Dentate leaf margin, 355* 



Descriptive terms, 353 



DeVries, Hugo, 201* 



DeVries, mutation theory of, 199 



Diageotropic, 20*, 30 



Diaphototropic, 30 



Diatropic, 30 



Dichogamy, 361, 362* 



Dichotomous, 300 



Dichotomous branching, 235 



Dichotomous venation, 300 



Dicotyledons, flower morphology of, 

 339* 



Dicotyledons, herbaceous and woody, 

 396 



Dicotyledons, megasporangia, spores, 

 and embryo of, 349* 



Dicotyledons, megaspore and embryo 

 of, 345* 



Dicotyledons, microspore of, 348* 



Dicotyledons, morphology of, 337, 349 



Dicotyledons, sporophylls and sporan- 

 gia, 341* 



Dicotyledons, stem structure, 105, 108 



Dicotyledons, structure of Qalvia stem, 

 106* 



Dicotyledons, summary of stem struc- 

 ture, 108 



Dicotyledons and monocotyledons, 

 413, 414*, 415 



Diffuse-porous wood, 382* 



Digestion, 124, 125 



Digestion in the bean, 126, 127* 



Dimorphic flowers, 362* 



Dicscious, 226, 237 



Dioecious moss, 294* 



Dioecious poplars, 389* 



Dioecious willows, 388* 



Dioon edule, cycad, 322* 



Disease caused by bacteria, 256 



Disease caused by fungi, 281-285 



Dominance, Mendelian, 184*, 185 



Dotted ducts, 94 



Double fertilization, 346, 347* 



Drupe, 364*, 365, 409* . 



Dry fruits, 364*, 365 



Ducts, dotted, 93*, 94 



Ducts, primitive, of fern, 305* 



Ducts, water, 85, 93* 



Dwarf shoots, 380 



East and corn crossing, 178*, 179 



Ecology, 146-153, 435-445 



Ecology defined, 214 



Egg, 165* 



Egg apparatus, 164 



Elaeagnus, hairs of, 149* 



Elaters, 312*, 313 



Elm, flowers of, 395* 



Elm, slippery, 395 



Elm, white, 392*, 393* 



Elms, 394* 



Elodea, 49, 152 



Elongation zone of root, 63*, 64, 65* 



Emargiriate leaf apex, 355* 



Embryo of Capsella, 345* 



Embryo of mandrake, 165*, 166* 



Embryo sac, 164, 165* 



Embryology, 57, 214 



Endodermis of fern rhizome, 305* 



Endodermis of roots, 110* 



Endoenzyme, 247 



Endosperm, 165,* 166 



Endothia parasitica, 281 



Entomophilous, 361 



Environment, 3 



Environment, adjustments to, 14, 23 



Environment, animate, 7 



Environment of animals, 11 



Epicotyl of pea, 24 



Epidermis of leaf, 113*, 114, 115* 



Epidermis of root, 110* 



Epidermis of Salvia, 106* 



Epidermis of stem, 84, 85*, 91 



Epigynous flower of appl"e, 409* 



Epigynous flower of yarrow, 411* 



Epigynous flowers, 358*, 359 



Equisetales, 311, 315 



Equisetum, life history of, 315* 



Equisetum arvense, 312* 



Erect tree type, 19, 20* 



Erosion, 443* 



Erythronium, 421* 



Erythronium, bulb development of, 



422* 



Evolution, 211, 215, 218 

 Exoenzyme, 247 

 Exoskeleton of stem, 300 



Fagopyrum (buckwheat), 17* 

 False whorls, 19, 20* 

 Fermentation, 246 

 Ferments, digestive, 248 

 Ferments, energy-forming, 248 

 Fertilization, 57*, 160 

 Fertilization, double, 347* 

 Fibers, central spindle, 77 

 Fibers, phloem, 94* 



