several groups of plants such as the algae, fungi, mosses, 

 and ferns. 



Anthesis 



The period when a flower is fully expanded or when fer- 

 tilization occurs. 



Anthocyanin 



Water-soluble pigments, usually red, blue, or violet in 

 the cell-sap of leaves, stems, flowers, and fruits of plants. 



Anthropic (Anthropeic) 



Refers to the influence of man in contrast to natural 

 influences, e.g. a fertilized soil under crop rotation. 



Anthropochore 



A species that is regularly disseminated by man, e.g. 

 weeds, crop plants, cf. Anemochore. 



Anthropogenous 



Refers to influences caused by man, e.g. cultivation. 



Anthropomorphism 



The mode of thought or expression which attributes 

 characteristics of man to non-human objects. 



Anthropophilous 



Refers to plants which grow in proximity to man such 

 as weeds in cultivated lands or on paths. 



Antibiosis 



The interaction between organisms produced by an 

 Antibiotic (q. v.). 



Antibiotic 



A substance produced by organisms, especially bacteria 

 and fungi, which passes into the surrounding medium and 

 is toxic to other organisms, e.g., penicillin from the mold 

 Penicillium notatum destroys many kinds of bacteria. 



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