CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 

 GARDEN— No. 62 



STUDIES ON THE ROCKY MOUNTAIN 

 FLORA-XIII 



By per axel RYDBERG 



NEW YORK 



1904 



[From the Bullbtim of the Tokbby Botanical Ciatb, 31 : 631-666. D«c«mber, 1004] 



