United States 

 Department of 

 Agriculture 



Forest Service 



Intermountain 

 Research Station 



Research Paper 

 INT-373 



December 1986 



Adaptive Variation in 

 Pinus ponderosa 

 from Intermountain 

 Regions. II. 

 IVIiddle Columbia 

 River System 



3? 

 ^) . 

 ri": ; 



G. E. Rehfeldt 



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rn 



CO 



CO 



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