Gemmation 



A DICTIONARY 



Germination 



GEMMA'TION, reproduction by 

 means of gemmae. 



GEMMIFEROUS, bearing gem- 

 mae. 



6flMMLP'AR0US, producing 

 gemmae. 



GEM'MULE, diminutive of 

 Gemma— an old term for leaf- 

 bud and plumule. Now ap- 

 plied to certain primary for- 

 mative granules in the proto- 

 plasm. (Nageli.) 



GENEAGiSN'ESlS, see Parthe- 

 nogenesis. 



GJ&N'ERA, pi., see Genus. 



GEN'ERAL, see Common. 



GEN'ERAL IN'VOLUCRE, see 

 Common Involucre. 



GENERATING TiS'SUE, see 

 Meristem. 



GENERATIVE CELL, a sexual 

 reproductive cell of any kind. 

 See Gamete. Also applied to 

 the cell in a pollen-grain which 

 develops into the pollen-tube. 

 Compare Vegetative Cell. 



GENERATIVE NU'CLEUS, the 

 nucleus in the pollen-tube 

 which is directly concerned in 

 fertilization. 



GENflR'IC, pertaining to a genus- 



6en£T'IC, pertaining to genera- 

 tion or origin; e.g., things are 

 genetically related which have 

 the same origin. 



GENET'lC SPIRAL, a spiral line 

 passing through the point of 

 insertion of all equivalent lat- 

 eral members on an axis from 

 older to younger; generating 

 spiral; fundamental spiral. 



GENICULATE, bent abruptly at 

 an angle, like the knee, as the 

 stems of decumbent grasses. 



6ENlC ULUM, a term occasionally 

 applied to a node, especially 

 when the stem is bent at that 

 point, as is frequent in grasses. 



GENUFLECTION, the formation 

 of a knee-like bend in a con- 

 jugating filament, as in Siro- 

 gonium. 



GE'NUS (pi. 6en'era), a group of 

 species within a family or 

 order. 



GE'NUS HY'BRLD, a hybrid be- 

 tween plants of distinct genera; 

 bigener. 



GE'OBLAST, a plumule which in 

 germination leaves the cotyle- 

 dons under ground, as in the 

 pea. 



GEOGRAPH'ICAL B6T'ANt, the 



study of plants in respect to 

 their geographical distribution ; 

 botanical geography. 



GEOLOGICAL BOT'ANt, see Fos 

 sil Botany. 



GEOT'ROPISM, the tendency to 

 grow downward or toward the 

 centre of the earth. Compare 

 Apogeotropism. 



GERM, a bud or growing point; 

 the embryo in a seed; a rudi- 

 mentary ovary or young fruit; 

 a female reproductive cell — 

 germ-cell, oosphere; a spore 

 or seed; especially a spore or 

 reproductive individual in bac- 

 teria. 



GERM CELL, any female repro- 

 ductive cell. Compare Sperm- 

 cell. See Oosphere. Ap- 

 plied also by Brefeld to spores 

 of the simplest character (Spo- 

 ridia) borne on a promycelium. 



GER'MflN, an old name for ovary. 



ger'mInal Apparatus, see 



Egg- APPARATUS. 

 GER'MlNAL COR'PUSCLE, see 



Oosphere. 

 GER'MlNAL VES'lCLE, see 



Oosphere. 

 GERMINATION, the early stage 



of growth of a seed or spore 



into a new plant; sprouting. 



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