CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 



GARDEN— No. 141 



STUDIES 01 THE ROCKY 

 MOUNTAIN FLORA-XXV 



By PER AXEL RYDBERG 



NEW YORK 

 1911 



Reprinted, without change of paging, from the Bulletin of theTorjiky Botanical 



Club 38: II-23. 15 F 19U 



