SUGAR MAPLE. 
POLYGAMIA MONOECIA. 
GENERIC CHARACTER. 
Calyx of one leaf with five divisions. 
Corolla of five oval petals. 
Seed-vessels united at the base ; roundish, compressed, each 
terminated by a large membranaceous wing, and con- 
taining a solitary seed. 
SPECIFIC CHARACTER. 
C, 
Acer saccharinum. A. foliis quinquepartito-palmatis, acu- 
minato-dentatis. Linn. Spec. Plant. 
ed. tert. 14 96 . 
Leaves hand-shaped, sharply toothed, and 
divided into five parts. 
Sugar Maple Tree. Amer. Phil. Trans. 3. p. 64. 
We are indebted to Dr. Benjamin Rush, professor 
of the Institute and of clinical medicine in the 
university of Pennsylvania, for an excellent account 
of the manner in which the sugar is procured from 
this useful plant, as well as for some observations 
on the nutritive qualities of that aliment. In the 
following description, therefore, we shall avail our- 
