80 TREES AND TREE-PLANTING. 
THE LARGE-LEAVED MAPLE. 
This is a most graceful tree, and, when grown in soil 
and climate favorable to its thrift, attains a height vary- 
ing from forty to ninety feet, with a diameter of from 
two to five feet. The bark of its trunk is rough and of 
a dark-brown color, and that of its wide and spreading 
branches ash gray. Its leaves vary in size, the largest 
being nearly a foot broad. It bears a very fragrant, 
greenish-yellow flower, which appears during the months 
of April and May. Its latitude of growth is between 
forty and fifty degrees north, and it is indigenous to the 
northwest coast of North America, where it is found in 
woody, mountainous regions along the sea-coast, and 
on the great rapids of the river Columbia. Its wood 
is of a whitish tint, of a grain scarcely inferior to 
the finest satin-wood, and is well adapted for cabinet- 
making. 
This species produces sap in abundance, and might be 
made use of for sugar-making, as its saccharine property 
is equal to many of its congeners. It is a highly orna- 
mental tree, and attention to its suitability for general 
cultivation cannot be too warmly recommended. It is 
propagated by layers and of rapid growth. 
THE ROUND-LEAVED MAPLE. 
The round-leaved maple is a native of the northwest- 
ern coast of the American continent, between the forty- 
second and fiftieth degrees of latitude, where it arrives at 
the height of from twenty to forty feet. Its branches 
are pendent, slender, and somewhat crooked ; bark, when 
young, smooth and of a green color. This species may 
readily be distinguished by the regular form of its leaves, 
which are heart-shaped, equally lobed and nervated, of 
a pale, reddish-green color, smooth above and downy 
beneath, with lobes acute and sharply serrated. Its 
flowers, which are of a middling size, appear in April 
