MEMOIRS DEPARTMENT OF BOTANY COLUMBIA UNIVERSITY VOlee 2. PEATE 20) 
AW | Lf ps VALLE 
DCA Si) Yee — 
— 
l A AZZ f= 
\ Le Wh aS = 
\ Sy eS SS 
\ SL 
Wt 
1-5 POTENTILLA DECURRENS 6-10 POTENTILLA MULTISECTA 
