Heteromorphic 



Refers to Alternation of generations (q. v.) in which 

 forms in different stages are unlike. 



Heterophagous 



Refers to animals which eat several kinds of food. cf. 

 Omnivorous. 



Heterophyte 



A Saprophyte or Parasite (q. v.). See Heterotrophic, 

 Autotrophic, Holophytic. 



Heteroploid 



Refers to a population comprising Aneuploid, Diploid, 

 and Euploid members. 



Heterosis 



The increase in vigor or the growth of offspring resulting 

 from the crossing of genetically different parents, syn. Hy- 

 brid vigor. 



Heterotrophic 



Refers to an organism in which complex materials, espe- 

 cially organic foods, are the chief source of nutrition, in con- 

 trast to Autotrophic (q. v.) organisms, e.g., animals, Parasites, 

 Saprophytes, cf. Holozoic, Mixotrophic. 



Heterotropous 



Refers to an animal which may wander into a com- 

 munity and play an important or unimportant part while 

 present, but eventually dies if it does not move into a more 

 favorable environment, cf. Index species, Tychocoen. 



Heterozygous 



Refers to an organism that originated from the fusion of 

 gametes containing unlike Genomes (q. v.). cf. Homozygous. 



Hibernaculum 



(1) The habitat Niche where certain animals overwinter. 

 (2) An overwintering bud of an aquatic plant. 



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