70 ADDISONIA 
many years, and it is under this name that it is usually found in 
local floras and lists published before the last ten years. True 
Solidago canadensis, which in the vicinity of New York is an un- 
common species, is however readily distinguished by its markedly 
smaller involucres; in addition it strongly tends to being less 
pubescent and to having more sharply serrate leaves. 
The illustration was prepared from a plant growing wild on the 
grounds of the New York Botanical Garden. 
KENNETH K. MACKENZIE. 
EXPLANATION OF PLATE. Fig. 1.—Inflorescence. Fig. 2.—Leaf. Fig, 3.— 
Head, X 3. 
