52 FOREST TREES. 
appear earlier in spring, and retain their verdure 
later in the fall; but in the production of sap, and 
the quality of its timber, it is inferior to the Ameri- 
can tree. It is propagated from seed like the Sugar 
Maple. 
9. Acer pseudoplatanus—Sycamofe Maple. 
Leaves, heart-shaped, smooth; five-lobed, unequally 
toothed; racemes, pendulous; fruit, smooth, with 
long, large wings. 
The Sycamore Maple is a native of of the Eastern 
Continent, but has for many years been cultivated as 
an ornamental tree in the older States of the Union. 
It attains the height of sixty feet. It is a rather 
coarse growing tree, with stiff branches. The wood 
is esteemed in Europe for turning, and is applied to 
a variety of other uses. It is, however, inferior to 
that of the Sugar Maple, and the tree is not likely to 
be much noticed by any but amateurs. The young 
seedlings are sometimes injured by the winter in 
Northern Illinois, but after a few years become quite 
hardy. They do not transplant successfully when 
several years old. The seeds ripen in October, and 
are treated like those of other species. 
AESCULUS—HORSE CHESTNUT, BUCKEYE. 
Natural Order, Sapindacee. 
Calyx tubular, five-lobed; petals, four or five, 
unequal; stamens, seven; filaments long and slender, 
often unequal; seed large, with a shining coat and 
a large, round, pale scar. 
