INDEX 



359 



Differentiation, 102. 



Digestion, 87. 



Dionsea, 40. 



Disease, bacteria, 134, 135. 



Disk, 310. 



Dotted duct, 53. 



Downy mildew, 142. 



Drosera, 38. 



Drought, 337. 



Drought plants, 326. 



Drupe, 239, 288. 



Dune, 338. 



Ectocarpus, 120. 



Egg, Angiosperms, 235; GEdogo- 



nium, 110. 

 Embryo, 85; Angiosperms, 236; 



Conifers, 217. 



Endosperm, 86; Conifers, 218. 

 Enzyme, 88. 

 Epidermis, leaf, 15, 24; Marchan- 



tia, 167; stem, 50. 

 Epiphyte, 82. 

 Equisetum, 197. 

 Ericaceae, 302. 

 Evergreens, 33. 



Family, 262. 



Fat, 89. 



Fermentation, bacteria, 134; 

 yeasts, 138. 



Ferns, 183; antheridia, 193; ar- 

 chegonia, 193; fertilization, 195; 

 gametophyte, 193; general char- 

 acters, 184; leaves, 187; life- 

 history, 187, 196; sperms, 194; 

 sporangia, 191; sporophyte, 187, 

 195; vascular system, 188. 



Fertilization, 107; Angiosperm, 



236; conifer, 216; fern, 195; 



Fucus, 124; liverwort, 169; 



Mucor, 142; (Edogonium, 110; 



24 



Peronospora, 143; red Algse, 

 126; rusts, 152; Spirogyra,^Il4; 

 Ulothrix, 107. 



Fiber, 295. 



Fig, pollination, 252. 



Figwort, pollination, 249. 



Filament, 224. 



Flax, 296. 



Flower, 220; apocarpous, 284; 

 bilabiate, 223; cleistogamous, 

 243; clusters, 232; dioecious, 

 230; Epigynous, 231; hypogy- 

 nous, 231; insects, 242; monoe- 

 cious, 230; naked, 222; numbers, 

 229; papilionaceous, 291; pistil- 

 late, 230; protandrous, 250; pro- 

 togynous, 250; staminate, 230; 

 sympetalous, 223. 



Foliage leaves, 34. 



Forest, deciduous, 350; protective, 

 322; reservations, 322; supply, 

 321; tropical, 355; xerophytic, 

 344. 



Forestry, 320. 



Frond, 64, 187. 



Fruit, 238. 



Fucus, 118, 122. 



Fungi, 129, 165. 



Gametangium, 122. 



Gamete, 107. 



Gametophyte, 171; Angiosperm, 



235; Conifer, 215; Equisetum, 



200; fern, 193; Lycopodium, 



202; Selaginella, 204. 

 Genus, 262. 

 Geotropism, 90. 

 Germination, conditions, 86; seed, 



84, 218. 

 Gills, 155. 

 Girdling, 55. 

 Glceocapsa, 98. 



