Forest Trees of Illinois: How to Know ThemFuller, George D. (George Damon)
Philosophy
Forest Trees of Illinois: How to Know Them
Fuller, George D. (George Damon)
Trees -- Illinois
THE hawthorns, or thorn-apples, are small trees or shrubs of the apple
family which are widely distributed throughout the northeastern United
States, with fewer species in the South and West. In North America, no
less than 150 species have been distinguished, but their proper
identification is a task for the expert. There are about a dozen haws
that reach tree size in Illinois, attaining a height of 20 to 30 feet
and a stem diameter of 8 to 12 inches. Of these, perhaps the best known
is the cock-spur thorn with its many strong straight spines and shining
leaves. Its _bark_ is pale gray and scaly. Its _winter buds_ are small,
globose and lustrous brown.
[Illustration: COCK-SPUR THORN Flowers and fruit one-half natural size.]
The _leaves_ are conspicuous because of their dark green glossy surface.
They are broadest toward the apex tapering to the short petiole. They
vary in size in different localities, the smaller-leaved varieties seem
to be more frequently met with in the southern part of the State than in
the north. These leaves are alternate, wedge-shaped, notched on the
edges, and from 2 to 3 inches long.
The _flowers_ are rather small, arranged in flat-topped clusters, white
in color, with about a dozen pink stamens.
The _fruit_ is 1/3 inch thick, greenish-red; the flesh is hard and dry.
This haw is one of the best for planting for ornamental purposes; with
its spreading branches, it forms a broad, rounded crown. It is hardy and
succeeds in a great variety of soils.
The dotted hawthorn, _Crataegus punctata_ Jacq., also has wedge-shaped
leaves but they are leathery, dull gray-green in color with
conspicuous veins. The tree reaches a height of 25 feet with
distinctly horizontal branches forming a broad flat crown. It is often
almost without thorns. The fruit is oblong, dull red with pale dots,
becoming mellow.
The pear-thorn, _Crataegus calpodendron_ Med., is a smaller tree, with
broader leaves, very few thorns and pear-shaped fruit. The haw is
scarlet or orange-red, the flesh is thin and sweet.
+RED HAW+ _Crataegus mollis_ Scheele
LIKE almost all the hawthorns, the red haw is a tree of the pasture
lands, the roadside, the open woods and the stream banks. It is the
largest of our haws, occasionally reaching a height of 30 feet, with
ascending branches usually forming a low conical crown. The twigs are
hairy during the first season, but are soon smooth, slender, nearly
unarmed or occasionally armed with stout, curved thorns.
[Illustration: RED HAW
Flowers one-half natural size.]
The _leaves_ are ovate or nearly orbicular, coarsely toothed nearly to
the base, usually 3 to 5 pairs of broad, shallow lobes. Both surfaces
are hairy.
The _flowers_ are often nearly an inch across, in compact clusters. They
have about 20 cream-colored, densely hairy stamens.
Public-domain text, read in full here on John Shaqi.
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