188 



THE KOCK MAPLE. 



Glory, said to be a native of India. It is cultivated by cuttings, and 

 seldom flowers. The potatoes are tubers growing from the stem as 

 short underground branches. They serve the plant as reservoirs of 



surplus starch and sugar for "j 

 its use in early Spring. 



Jalap, a well-known drug, is the root of 

 Ipomcea purga of Mexico. 



Scammony is the root of Convolvulus Scam- 

 monium of Syria, 



LI. THE ROCK 

 MAPLE. 



Description. 



This valuable 

 tree, known as 

 the Rock Maple 

 or Sugar Maple, 

 grows in forests, 

 openings, or 

 fields, from Can- 

 ada to the moun- 

 tains of Georgia, 

 and from Nova 

 Scotia to the Rocky Mountains. It is 

 most abundant in the New England 

 States, where it is an embellishment 



FIG. LI. Acer eac- 

 charinum the Sugar 

 Maple. Sugar-making 

 in New Hampshire. 



