Caatinga 



A type of vegetation consisting of thorn scrub in north- 

 eastern Brazil. 



Cactoid 



Resembling a cactus, e.g., Euphorbia spp. in northern 

 Africa. 



Caenogenesis 



Special adaptations of embryonic or young stages of an 

 animal to environmental conditions, which are more recent 

 in evolution than adaptations in the adult, e.g., mosquito 

 larvae with special spiracular openings, cf. Deuterogenesis. 



Caingin Clearing 



An area denuded of vegetation and used for agriculture 

 in southeast Asia. 



Cairn 



A pile of stones used as a landmark. 



Calcareous 



Refers to material containing calcium in moderate to 

 large amounts, especially soil with calcium carbonate, 



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