Epharmony 



The acquirement by an organism of processes or morpho- 

 logical structures by which it is enabled to exist in an 

 altered environment, cf. Adaptation. 



Epharmose 



The process of gradual adaptation of a species to a 

 change of environment. 



Ephemeral 



Refers to short-lived existence. 



Epibiotic 



An endemic surviving from a former flora, a Relic. 



Epicole (Epibiont) 



An organism living attached to another organism with- 

 out benefit or harm to the latter, e. g., barnacles attached to 

 corals, algae on the bark of trees, cf. Commensalism, Epi- 

 phyte. 



Epidemic 



The widespread occurrence in greater numbers than 

 usual of a species that is usually parasitic or predatory. 



Epidermis 



The outermost layer of cells of animals and plants; cork 

 cells replace the epidermis in stems and roots of older woody 

 plants. 



Epigeal 



Refers to an organism that lives close to the ground, e. g., 

 some insects, cotyledons on seedlings such as the navy bean, 

 cf. Hypogeal. 



Epilid 



A community of Epiphytes (q. v.). 



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