USDA Forest Service 

 Research Paper INT-250 

 May 1980 



Interactions of Pectins and Tissues of 

 Cronartium vibicola and Pinus monticola 



in Culture 



Neil E. Martin 



INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION 

 U.S. Department of Agriculture 

 Forest Service 

 Ogden, UT 84401 



