436 



INDEX 



Furrowing (cytokinesis), 186 jf. 

 Fusion, centrosomes, 280, 291 



chromosomes, 257, 394 



gametes, 276 ff. 



nuclei, 15, 219, 277 ff., 299, 301 



sporocytes, 313, 314 



three nuclei in endosperm, 299, 301 



O 



Gaertner, 13 



Gaillardia (angiosperm), 110 

 Gall-fly, 319, 364 

 Gallactinia (fungus), 80 

 Gallardo, 184 

 Galton, 399, 402, 404 

 Galtonia (angiosperm), extrusion of 

 chromatin, 136 



nucleolus, 65 



reduction, 236, 239 



somatic pairing, 256 



Gametes, 137, 273 ff., 288, 293 ff., 333 ff. 

 Gametophytes, sex-determination in, 



355, 356, 364, 372 

 Garber, 292 

 Gardiner, 46, 47 



and Hill, 46 

 Gardner, 108, 202, 204 

 Gargeanne, 110, 111 

 Gastrodia (orchid), 314 

 Gatenby, 120 

 Gates, 63, 149, 241, 252, 344, 345 



and Thomas, 345 

 Gaudissart, 121 



Geddes and Thomson, 355, 369 

 Geerts, 241, 252 

 Gegenbaur, 15 

 Gel, 35 



Gelatin, 37, 194 

 Gelation, 38 

 Gemini, 233 

 Gemmule, 49, 226, 398 

 Generative apogamy, 315 

 Generatule, 49 

 Genes, 343 



cytological evidence for, 391 ff. 



in development, 410 



linked, 380, 386 



modification of, 351-353 



nature of, 352, 391, 409 

 Genetic continuity, 15, 323 

 Genotype, 339 

 Geotriton (salamander), 118 



Gerassimow, 61, 69 



Germ cells and soma cells, 402 ff. 



Germ-plasm, 226, 334 



and soma-plasm, 407 



Weismann's conception of, 400 ff. 

 Germ-track, 403 ff. 

 Germinal localization theory, 328 



selection, 404 



vesicle, 62, 221, 275 

 Giard, 15 

 Gigantism, 346 

 Giglio-Tos, 250 

 Gille, 160 



Ginkgo (gymnosperm), 92, 122, 236, 294 

 Gladiolus (angiosperm), 177 

 Glaser, 40, 213 

 Glceocapsa (blue-green alga), 204, 205, 



206 



Globular theory, 6 

 Globulin, 40 

 Glucose, 106 

 Glucoside, 135 

 Glycogen, 108 

 Gnetales, 294 

 Gnomonia (fungus), 291 

 Godlewski, 119, 213 



echinoderm hybrids, 326-328 

 Goldschmidt, chromidia, 133 



parthenogenesis, 319 



reduction, 244, 245, 256 



sex-determination, 370 

 Gonium (green alga), 112 

 Gonotokont, 225 

 Goodsir, 10 

 Goroschankin, 46 

 Gottsche, 110 

 Gould, 371 



Grafted tissue in apogamy, 312-314 

 Graham, 82, 293 

 Granata, 250 



Granular theory of protoplasm, 33, 49 

 Grasshopper, 156, 158, 162, 233, 237, 



243, 258, 351, 391, 392 

 Gregoire, chromomeres, 258 



nuclear reticulum, 64, 150, 152, 155 



reduction, 227, 231, 234, 236, 245, 



248, 257, 259 

 Gregoire and Berghs, 82 



and Wygaerts, 64, 149, 152, 155 

 Gregory, 239, 346, 391 

 Grew, 2 



Griffithsia (red alga), 223 

 Griggs, 239, 248 



