ELEMENTS 
Destruction of plants, 203. 
Determinate inflorescence, 
*268, 269. 
Deutzia leaves, *108, *109. 
Diadelphous, 153, #155. 
Diagrams, floral, #156, #157. 
Dichogamy, #175, 176. 
Dicotyledonous plants, 28, 211. 
Dicotyledonous stem, annual, gross 
structure of, 67, *68. 
Dicotyledonous stem, cross-section 
of, *68, #70, #72, *73 
wie, ca OS Ps 
Dicotyledonous stem, minute struc- 
App., 
ture of, *69. 
Dicotyledonous stein, rise of water 
in, 78-80, #81. 
Dimorphous flowers, #178. 
Dicecious, 151. 
Discharge of pollen, #162. 
Dispersal of seeds, 191-100*. 
Distinct, 153. 
Distribution of material in mono- 
cotyledonous stems, 66, 67. 
Dock fruit, study of, 183, 184. 
Dodder, 382, 
Dormant buds, 95. 
Double flowers, 160. 
Drosera, #119, #120, *121. 
Drought, endurance of, 115. 
Drought-plants, 114. 
Dry fruits, 187. 
Duct, *69, #70, 78. 
429 
FOO, 
Earliest plants, 255, 256. 
Ecology, 2, 105-125* 
191-199*. 
Keg, osmosis in, 45, * 
Egg-cell, 165, #166, 
#251. 
Elaters, 251 
168-180, 
#241, 246, 
OF BOTANY 
Elliptical, App., *263. 
Elin bud, #92. 
Ehn fruit, #187. 
Elm leaf, 97, 98. 
Elm, twig of, #92. 
Emarginate, App., #264. 
Embryo, 5, 14. 
Embryo sac, #166. 
Endosperm, *13, 14, #17. 
Energy, source of, in plants, 140, 
141. 
Epidermis, uses of, 181, 132. 
Epidermis of root, *36, *37. 
Epigynous, *156. 
Epipetalous, 155, *156. 
Equisetales, 210. 
Essential organs, *148. 
Euphorbia splendens, #125. 
Evergreen, 141. 
Evolutionary history of plants, 254- 
262*, 
Excretion, 44. 
Excretion of water, 134, 135. 
Excurrent trunk, 52. 
Existence, struggle for, 200-206. 
Exogenous, 71. 
Explosive fruits, 191, 192. 
Fall of horse-chestnut leaf, *102, 
104. 
Fall of the leaf, 141, 142. 
Family, 208. 
Family, subdivisions of, 209. 
Fascicled roots, *34. 
Fermentation, 233. 
Fern, study of, 243-246*, 
Fern-plants, 252, 253. 
Ferns, 247, 248. 
Fertilization, 165-167*, 
Fibrous roots, *84. 
