INDEX 



423 



Dentifrices, 207. 



Depression of stomata, 96, 158, 160 

 (fig.), 165. 170. 



Dermatogen. 19, 20, 74, oj, 369. 



Desert, distribution of, 391. 



Desert-plants, 178. 



Desmidium, log (fig.). 



Desmids (Desmidiacea;), 192, 2ir; 

 reproduction of, 209 (lig.), 

 216, 220, 228 ; structure of, 

 2o8-:o (fig.). 



Deiitzia, hairs of, 102 (tig.), 103. 



Development of, anther, 360 (fig.), 

 361 ; ascospores, 240 (fig.), 

 245 ; cambium, 117, 118 (fig.) ; 

 cork-cambium, 135, 136 (fig.), 

 137 ; Fern-leaf, 290 (fig.), 291 ; 

 Fern-prothallus, 299 (fig.), 

 300 ; Fern-sporangium, 291-9 

 (fig.) ; gametes, 184 (fig.), 213 

 (fig.), 214; .gonidia, 232, 243 

 (fig.) ; laticiferous cells, 153 ; 

 laticiferous vessels. 154 ; 

 lateral branches of root, 65, 71 

 (fig.) ; lateral branches of 

 stem, 90 ; leaves, 19 (fig.), 90 ; 

 lenticels, 139 ; Moss-plant, 2S7 

 (fi,g.), 288 ; Mushroom {Agai'i- 

 cus), 248, 249 (fig.) ; ovules of 

 Angiosperms, 358 (fig.), 359 ; 

 pollen grains, 360 (fig.), 361 ; 

 procambial strands, 89 ; root- 

 cap, 18, 20 (fig.), 55 ; secre- 

 tory cavities, 151 ; sieve-tubes, 

 28 ; spermatozoids, -77 ; 



spores, 305-8 (fig.) ; sporo- 

 gonium of Liverworts, 282 ; 

 sporogonium of Mosses, 284, 

 285 (fig.) ; stamens, 360 (fig.), 

 361 ; starch - grains, 41 ; 

 stomata, 98; tyloses, 126; 

 vascular tissues, 89, 90; vessels, 

 28 ; zoospores. 212, 213 (fig.), 

 216, 217 (fig.), 218 (fig.), 219 

 (fig.). See also under Embryo- 

 logy. 



De Vries, 381. 



Dextrin, 11, 46, 47, 53. 



Dextrose, 45. See also Glucose. 



Dialysis, 57. 



Diaphragm, of aquatics, 175 ; of 

 microscope, 399, 400 ; of Moss- 

 capsule, 2S5 (fig.), 286. 



Diarch roots, 69, 70, 131 (fig.), 295, 



341- 

 Diastase, 46, 53, 56 ; extraction of, 



53, 54- 

 Diatomaceous earth, 207. 



Diatoms (Diatomacese), 39, 192 

 193 (fig.), 206, 207 (fig.), 20t 

 211, 406 ; reproduction of, 2 it 



219, 228. 



Dicotyledonous timbers, 129, 130. 



Dicotyledons, 355, 367, 408 ; cm- 

 bryology of, 368-71 (fig.) ; 

 epidermis of, 93 ; leaf of. 93, 

 98, 107-14 (figs.) : root of, 

 05-71 (figs.), 131 (fig.), 132; 

 stem of, 76-84 (figs.), 80, 117-3C 



(figs.), 135-41 (figs.). 

 Dtcyanella heleromella, protonema of, 



287 (fig.). 

 Dietyota, 17 (fig.). 

 Differentiation of sex, 186, 2r2 



220, 227, 228. 



Diffusion in plant-cells, 6, 12, 13, 



5-- 

 Digestive glands, 144, 149, 15c 



(fi.g). ^ 



Digitalin, 48. 



Digitalis, 48, 363. 



Direcious, 223, 225, 334. 



Dioon ediile, 327 (fig.). 



Diospvros, 126. 



Direct nuclear division, 21. 



Disaccliarides, 44. 45. 



Disc of Umbellifera;', 148. 



Discomycetes, 407. 



Diseases of plants, and immunity 

 253 ; control of, 247, 253, 254 ; 

 due to animals, 143 ; due tc 

 Bacteria, 265 ; due to Fungi 

 230. ^31. ^35. ^36. 242, 243, 

 ^45. ^48, 251, 252, 253. 



Dispersal. 219, 392 (fig), 393; barrier; 

 to, 393 ; of gonidia, 232, 242 ; 

 of microspores, 326, 330, 345 ; 

 of oospores, 21}, ; of seeds, 46 

 50, 103, 353, 372 ; of soredia 

 of Lichens, 261 ; of spores, 

 238, 242, 245, 249. 1-,}, 282, 

 287, 300, 313, 321 ; of zygo- 

 spores, 186. 



Dissipation of energy, 265. 



Distribution of plants, 391-3. 



Division of, cells, 16, 21-5 (figs.) ; 

 chloroplasts, 25; nuclei, 20-2; 

 (figs.) ; spore mother-cells 

 306-8 (fi,g.). 



Division of labour, 395 ; in Algae, 



190. 197, 198, 199. 210. 22^ ; 



in Ferns, 30S ; in he; ero- 



sporous plants, 321, 

 Dock (Rumex), 113. 

 Dock-family (Polygonacea;), 356. 

 Dodder (Cuscuta), 178 (fig.), 179. 



