TROPICAL FLORAS 



69 



cies are so widely scattered that it is sometimes difficult to 

 find two of the same kind. Another interesting fact is, that 

 the number of species of all kinds — trees, shrubs, and herbs — 



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is twice as great in the patches of forest as in the open campos, 

 while the two are so distinct that he believes them to have 

 hardly a species in common. 



