572 
Deciduous trees, 268; forests, 508, 
509*. 
Deliquescent stem, 168, 168*. 
Demonstration of osmosis, 116, 116*. 
Depth of root systems, 141. 
Desmids, 314, 314*. 
Destructive Toadstools and Bracket 
Fungi, 388. 
Determinants, 536. 
Development, of ovule into a seed, 
43, 438*, 44*, 45*; of Bean seed- 
ling, 107, 106*; of corn seedling, 
101*, 103*; of Clover seedling, 
109, 109*; of embryo in Angio- 
sperms, 466, 466*, 467*; of Onion 
seedling, 107, 105*; of ovule and 
pollen tubes in Pine, 455-457, 
455*, 457*; of wheat seedling, 
104* 
De Vries, Hugo, 524, 524*. 
Dextrose, 277. 
Diadelphous stamens, 15, 14*. 
Diagrams of inflorescences, 32*. 
Diatoms, 231, 231*, 232* 
Dichotomous branching, 429. 
Dicotyledons, 170; herbaceous stems, 
192, 192*, 193*, 194*, 195*, 196*; 
woody stems, 197, 198*, 199%, 
200*, 201*, 202*; venation of 
leaves, 245, 471, 244* 
Diffusion, of liquids and gases, 95. 
Dionaea muscipula, 132, 273*. 
Direction of growth in roots, factors 
influencing, 150, 151*. 
Dioon, staminate strobilus, 447*. 
Discovery of the cell, 112. 
Dissemination of seeds and fruits, 82; 
by animals, 84, 85*, 86*; by 
explosive or spring-like mechan- 
isms, 87, 87*; by water, 84; by 
wind, 82, 83*, 84*. 
Distribution of plants, 5. 
Diversity of plant forms, 5. 
Divisions, in classification, 291; of 
Fungi, 252. 
Dock, 59, 60, 128*. 
Doctrine of Special Creation, 514. 
Dedder, 59, 163, 163*, 489. 
INDEX 
Dogbane, 133. 
Doll rag germinator, 99, 99*. 
Dominance, law of, 543; impure, 545; 
pure, 545. 
Dominant characters, 543. 
Dormant buds, 211. ; 
Downy Mildews, 355; of Ginseng, 
358, 361*; of Grapes, 355, 355*, 
356*; of Potatoes, 357, .257*, 
358%, 359%, 360*. 
Double fertilization, 43, 465, 465* 
Drosera, 132, 272*. 
Dry plain societies, 509. 
Duckweeds, 9, 505. 
Dutchman’s Breeches, 170. 
Earthstar, 391, 391*. 
Ecbalium Elaterium, 87*. 
Ecology, plant, 2; nature, 500. 
Ecological factors, 501. 
Ecological societies, 504. 
Economic Botany, 3. 
Ectocarpus, 320, 321*. 
Edible Boletus, 387*. 
Elaboration of foods 
structures, 95. 
Elaters, 411. 
Elm, 9; family, 478; tree, 168*, 176*. 
Embryology, 2. 
Embryo sac, 39; of Corn, 40, 39*, 44*; 
of oats, 40, 40*, 45*; of Red 
Clover, 40, 38*, 42*, 45*; of To- 
mato, 43*. 
Embryo, development from fertilized 
egg, 43, 44, 44*, 45*; of Apple 
and Squash, 59*; parts of Bean 
embryo, 56, 56*; of Corn, 44*; 
parts of corn embryo, 63, 63*, 
64*; of Cotton, 59, 59*; dicotyle- 
donous type, 466, 466*; function, 
55; monocotyledonous type, 466, 
467*; of Oats, 45*; of Potato and 
Buckwheat, 60*; of Red Clover, 
45*; of tomato, 43*. 
Endodermis, of roots, 147. 
Endogenous development, 197. 
Endophytes, 297. 
Endothia parasitica, 371, 372*. 
into plant 
