CONTRIBUTIONS FROM THE DEPARTMENT OF 

 BOTANY OF COLUMBIA UNIVERSITY.— No. no. 



Notes on Potentilla. — VL 



(Plates 287, 288,) 



BY P. A. RYDBERG. 



[Reprinted from The Bulletin of the Torrey Botanical Club, Vol. 24, No. 1, January 28, 1897.] 



