MEMOIRS 
DEPARTMENT OF BOTANY COLUMBIA COLLEGE. 
Vou. 1. PLATE. 75. 
HECHT 
FSS FS = SS ae 
ae Sg a = 
= es Se SSS 
2 Se SS Ses aS 
ea ees ee) ; 
ice) CEES? Basw. ee ere Lees 
—--a 
LONG SECTION STEM OF POLYGONUM PENNSYLVANICUM LINNAEUS. 
