gives rise to parenchyma, secondary xylem, and secondary 

 phloem in dicotyledons and gymnosperms) and for cork 

 cambium. 



Cambrian 



Refers to the oldest geological period in the Paleozoic 

 era, about 500 million years ago. 



Campo Cerrado 



A vegetation type in Brazil composed of scattered trees 

 in dense grassland. 



Campos 



Grasslands or savanna located south of the equatorial 

 forests in Brazil. 



Canadian Life Zone 



The southern half of the coniferous forest area of the 

 Boreal life zone (q. v.). 



Canopy 



The uppermost layer consisting of crowns of trees or 

 shrubs in a forest or woodland. 



Canopy Trees 



Trees with crowns in the uppermost layer of forest or 

 woodland. 



Capability 



See Land capability. 



Capacity, Adaptive 



The genetically determined range (or plasticity) of reac- 

 tions of an organism which enable it to respond in different 

 ways to a variety of conditions. 



Capacity Formula 



A formula used in hydraulics to calculate the capacity 

 or discharge volume of a channel. 



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