6o4 



INDEX 



Geneva, Lake, 503 



Gentianaceae, 436 



Genus (/>/. genera), 25, 187 



Geodynamic factor (influences), 293, 



296, 369, 388, 410 

 Geographer, animal, 17 

 ■ — , plant, vegetation patterns and, 9 

 Geographical changes, 155, 156, 165-72 



— (areal) patterns, 7-9 



— range of aquatic organisms, 317, 



478-9 



— ranges of plants, 5, 6, 182-252, 572 



— distribution of coniferous forest, 



246-7. 345 



— elements, 210, 211 



— gradient, 183 

 - — vicariad, 202 



Geography, animal, 2, 15, 17, 18 

 — , plant, see Plant geography 

 Geography, purpose of, 4 

 Geological eras and periods, 128-9, 145 



— history of plant groups, 128-53 

 • — time-scale, 128-9, 145 

 sequence, 128-9 



- — times, arid climate in, 148-9 



, plant groups in, 144, 145, 146-53 



Geology, indicator plants and, 577 

 Geomorphological relics, 201 

 Geophyte, 93. 94, 95, 355, 361, 366, 440, 



441, 443. 447. 451 

 Geotome, 335 

 Geraniaceae (Geranium family, Stork's- 



bill family), 124 

 Geranium, 123 



— family, see Geraniaceae 

 Germany. 262 



— , Pleistocene and present floras of, 

 161 



Germination of seeds, 69, 76, no, 452 



, delayed, 248 



, digestion and, 114, 115, 1 17 



Germules, aggregation of, 323 



Geiim (Avens), loi 



G. rivale (Water Avens), 204 

 G. iirhanum (Wood Avens), 204 



Giant Horsetails, 135, 136, 149, 150 



— Kelp, 37, 535, 537 



— PufTball, see Lycoperdon {Calvatia) 



giganteum 



— Redwood, see Sequoiadendron gigon- 



— Reptiles, 155 [teum 

 Gibbs, R. D.,>3 



Gigantopteris, 144 



Gilbert-Carter, H., 96 



Gill Fungus, 45 



Gin, 261 



Ginger (Zingiber), 90, 260, 262, 430 



Ginkgo biloba (Maidenhair-tree), 140, 



Ginkgoales, 141, 145, 149 [141 



Ginn and Company, xviii 



Ginseng, Chinese, 264 



Girdles of coastal marine vegetation, 

 526-7, 530, 531, 532, 533, 534-5 



Glacial periods (see also Glaciation), 

 149, 151-3, 156-61 



— relic, 201 



— survival, 161-5 



— time, 129 



Glaciation, European flora and, 156-7 

 — , Permian, 149, 156 [161 



— , plant-migration and, 156-7, 160, 161 

 — , Pleistocene, 129, 156-8, 159, 161-5 

 — , Quaternary, 156 

 — , recurrent, 129, 152, 156, 160-1 



— regions affected by, 152-3, 156, 157, 



158, 159, 160, 161, 162 

 Glaciers, erosion by, 538, 543-5 

 ■ — , residual features left by, 545-6 

 — , valley, 411 

 Glacio-fluvial deposits, 545 

 Glasswort, see Salicornia 

 Glaucous Bulrush, see Scirpus tabcr- 



naemo)itanii 



— Willow, see Salix glaiica s.l. 

 Glechoma hederacea (Ground-ivy), 121 

 Gloeocapsa, 28, 490 



Glosotrichia echimdata, 487 

 Glossopteris, 144, 148 



— flora, 148 



Glycine max (Soybean), 233, 259 



Gnetales, 62, 65, 67, 139, 145 



Gnetiim, 65 



Goats, 80 



Gobi Desert, 365, 366, 454 



Godwin, H., xviii, 174, 181 



Goeze, E., 22 



Goldenseal, 264 



Gondwanaland, 148, 196 



Goniaulax, 34 



Good, R., 19, 21, 157, 187, 194, ig6, 214 



Goose, 402 [281 



Gooseberry, see Ribes 



Goosefoot family, see Chenopodiaceae 



Gorges, 543, 544 



Gorse, see Ulex 



Gossypium (Cotton), 102, 234, 235, 265, 



— , world production of, 235, 237 [282 



Goudier Islet, Antarctica, 416 



Gourd, 258 



Gradient, geographical, 183 



Graebner, P., 23 



Graham, E. H., xviii, 555, 559, 561 



— Land, 417 



Grain crops, 224, 225, 227, 228, 230 



Grains of paradise, 261 



Gramineae (Grass family, Grasses), 127, 

 68, 73, 122, 123, 259, 270, 275, 276, 

 292, 308, 333, 342, 358-66, 383, 

 385, 386, 387, 388, 389, 399. 401, 

 410, 412, 413, 417, 419-21, 430. 

 440, 441, 442, 443. 445. 446, 447, 

 451, 453, 454, 460, 464. 466, 500 



