seasons are buried in the surface soil, e.g., plants with bulbs, 

 tubers, or rhizomes. 



Geosere 



A series of Climax Formations throughout geological 

 time in an area. 



Geotaxis 



A Taxis (q. v.) in response to gravity. 



Geotome 



An instrument for securing soil samples. 



Geotropism 



A Tropism (q.v.) in response to gravity, e.g., the main 

 roots of plants growing downward, the main stems upward. 



Geotype 



A genotypic population occurring in a habitat which is 

 partly isolated by topographic barriers; includes most geo- 

 graphical Races and Subspecies. Syn. geoecotype. cf. 

 Genotype. 



Geoxene 



An organism that occurs accidentally in the soil. cf. 

 Geocole. 



Germination 



The process of growth renewal of a seed or spore; a seed 

 is considered to have completed germination in some in- 

 stances when the Hypocotyl projects outside of the seed coat, 

 in other instances when the seedling appears above ground. 



Germ Plasm 



The protoplasm which transmits the hereditary characters 

 or Genes (q. v.). 



Gestation Period 



The period of time that the embryo and fetus are in the 

 uterus of an animal. 



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