Contributions from the Department of Botany 

 OF Columbia University.— No. 121. 



Rarities from Montana. 

 I., II., III. 



Antennaria dioica and its North 

 American Allies. 



BY P. A. RYDBERG. 



[Reprinted from the Bulletin of the Torrey Botanical Club, Vol. 24, No. 4, April 24, 1897 i 

 Vol. 24, No. s. May 29, 1897, and Vol. 24, No. 6, June 29, 1897.] 



