acorns that is secured. A term used in England especially. 



Pantono 



A fresh-water or brackish marsh in Argentina. 



Pantograph 



A drafting instrument used in copying maps or charts, 

 adapted for charting the location and area of plants in a 

 Quadrat (q. v.). 



Papagayo 



A violent northeasterly wind of the Pacific coast of Cen- 

 tral America. 



Papilionaceous 



Refers to the butterfly-like flower of many species in the 

 pea family, Leguminosae. 



Paramo 



An alpine type of vegetation, or the sparsely vegetated 

 land, in high mountains in the Andes and in northern South 

 America, cf. Tundra. 



Parang 



A type of mixed vegetation composed of species differing 

 in height, which occurs on areas following the repeated cut- 

 ting of forest in southeast Asia. 



Parasitism 



The interaction or Coaction in which one or more or- 

 ganisms, the Parasite, benefits while feeding upon, securing 

 shelter, or otherwise injuring one or more other organisms, 

 the Host; often the term is restricted to nutritive relations, 

 cf. Symbiosis, Saprophyte. 



Paratonic 



Refers to movements of plants such as tropic or nastic 

 movements induced by an external stimulus, cf. Tropism, 

 Nastic movement. 



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