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.)- 



Glasocapsa, 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- 

 IIVCB), 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 viniferd), 60, 257; 

 mildew (Plasmopora viticola), 

 243- 



Grape sugar. See Glucose. 



Grasses. See Gramineae. 



Grassland, distribution of, 391. 

 I Grasswrack (Zoster a), pollen of, 

 361 ; stem-structure of, 172. 



Gravity, perception of, 75, 78. 



Greater Celandine (Chelidonium 

 majus), laticiferous vessels of, 

 153, 154 J 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 (N epeta 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, 76, 78, 338; 

 secondary, 133, 134, 137. 



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

 89, 90; intercalary, 21; of 

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

 20 1 ; of Dictyota, 17 (fig.) ; of 

 Equisetum, 18 (fig.) ; of Fern- 

 prothallus, 300, 301 (fig.) ; of 

 Ferns, 18, 291, 302 ; of leaf, 

 18 (fig.), 291 ; of Liverworts, 

 270, 272 ; of Mosses, 18, 276 

 288 ; of root, 1 8, 20 (fig.), 65 ; 

 of Sphacelaria, 16 (fig.), 17 ; 

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

 cellular, 1 6-1 8 (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 officinale, 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, 35^, 

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



