INDEX 



429 



oil-secreting, 105 (fig.), 151-3 

 (fig.) ; sugar-secreting, 148, 149 

 (fig.) ; water-secreting (hyda- 

 thodes), 144-8 (figs.). 



Glandular cells, 148, 149 (fig.). 



Glandular hairs, 105 (fig.), 106, 298 

 (fig.), 299 (fig.), 328. 



Gleichenia, 294, 295, 310. 



Globe animalcule (Volvox), 189 

 (fig.), 190. 



Globoid (of aleurone grains), 51 

 (fig.). 



Glceocapsa, 205, 206 (fig.). 



Glucose, 45, 46, 48, 53, 55, 63 ; 

 osmotic pressure of, n ; re- 

 actions of, 47. 



Glucosides, 48, 63, 64 ; hydrolysis 

 of, 48, 53- 



Glutamin, 50. 



Glycerine, 49, 53. 



Glycerine jelly, use of, 405. 



Glycine, 49. 



Glycogen, 231, 255, 262 ; reactions 

 of, 231. 



Gnaphalium uliginosum, 375 (fig.). 



Gonidia of, Claviceps purpurea, 

 241 (fig.), 242 ; Cystopus, 232, 

 233 (fig.) ; Erysiphaceae, 243, 

 244 (fig.) ; Eurotium (Asper- 

 gillus), 243 (fig.) ; Penicillium, 

 243 (fig.) ; Phytophthora, 234, 



235 (fig.) ; Pythium, 234, 235 



(fig.), 236 ; Rust-Fungi, 247. 

 Gonidiophore, 243 (fig.). 

 Gonium, 189, 191 (fig.). 

 Gooseberry (Ribes grossularia) , 31 ; 



Mildew (Sphaerotheca mors- 



uvce), 230, 242. 

 Goosegrass (Galium aparine), hairs 



of, 104. 

 Goosefoot, Silver (Obione portula- 



coides), hairs of, 94 (fig.) ; 



secondary thickening of, 133. 

 Gorse (Ulex), 167 ; epidermis of, 



92, 160 (fig.). 

 Gossypium, 49, 102. 

 Gourd (Cucurbita pepo), pollen of, 



362 (fig.). 



Graft-hybrids, 389. 

 Grafting, 142, 389. 

 Grain (of wood), 127. 

 Gramineae, 39, 44, 80, 88, 117, 163, 



354. 356, 408 ; diseases of, 



241, 243, 245 ; grains of, 52 



(fig.), 150 ; hydathodes of, 



145 ; intercalary meristems of, 



21 ; stomata of, 97 (fig.), 100, 



101. 



Graminin, 44. 



Grape (Vitis vinifera), 60, 257 ; 

 mildew (Plasmopora viticola), 



243. 



Grape sugar. See Glucose. 



Grasses. See Gramineae. 



Grassland, distribution of, 391. 



Grasswrack (Zoster a), pollen of, 

 361 ; stem-structure of, 172. 



Gravity, perception of, 75, 78. 



Greater Celandine (Chelidonium 

 majus), laticiferous vessels of, 

 J 53. J 54 \ ovule of, 358 (fig.). 



Green Algae, 406. See Chlorophyceae. 



" Green cells " of animals, 260. 



Green manuring, 267. 



Green stems, structure of, 88, 162 

 (fig.), 167, 178, 310. 



Ground Ivy (Nepeta glechoma), 168 ; 

 epidermis of, 94 (fig.). 



Ground tissue, 65, 88 ; of aquatics, 

 171 (fig.), 173 (fig.), 175 ; of 

 leaf, 107-11 (figs.) ; of petiole, 

 114 ; of root, 66, 67 ; of stem, 

 19-30, 33, 7 6 , 7 8 , 338; 

 secondary, 133, 134, 137. 



Growing point, 16-20 (figs.), 26, 

 89, 90 ; intercalary, 21 ; of 

 Algae, 16 (fig.), 17 (fig.), 195, 

 201 ; of Dictyota, 17 (fig.) ; of 

 Equisetum, 18 (fig.) ; of Fern- 

 prothallus, 300, 301 (fig.) ; of 

 Ferns, 18, 291, 302 ; of leaf, 

 1 8 (fig.), 291 ; of Liverworts, 

 270, 272 ; of Mosses, 18, 276 

 288 ; of root, 18, 20 (fig.), 65 ; 

 of Sphacelaria, 16 (fig.), 17 ; 

 of stem, 18 (fig.), 19 (fig.) ; uni- 

 cellular, 16-18 (figs.). 



Growth, 16-20, 26, 31, 36, 40, 86 ; 

 of Algae, 195, 198, 199, 201 ; of 

 cells, 25, 26, 28, 29, 80, 93, 

 117, 153, 183, 191 ; of pollen 

 tubes, 350, 364, 365 ; second- 

 ary, 117 et seq. 



Guaiacum ojficinale, 130. 



Guard cells, 96-101 (figs.) ; change 

 of shape of, 98-100 (fig.) ; 

 development of, 98 ; raised, 

 96 ; sunken, 96, 160. 



Guelder Rose (Viburnum opulus), 

 extrafloral nectaries of, 148. 



Gum arabic, 39 ; tragacanth, 39. 



Gums, 38, 39, 155. 



Gutta percha, 157. 



Gymnosperms, 180, 322-7 (figs.), 

 334-53 (figs.), 354, 355, 356, 

 362, 368, 370, 372, 373, 407. 



