Twig, two-thirds natural size. Leaf, one-third natural size.]

The _leaves_ are of a leathery texture, dark green on the upper surface,

lighter, hairy, and brown-scurfy below. The leaves are wedge-shaped, 4

to 10 inches long and about the same in width. There is a considerable

difference in the leaves of this oak both in size and shape.

The _fruit_ is an acorn about three-quarters of an inch long,

yellow-brown and often striped, enclosed for half its length or more in

a thick light brown cup.

The _wood_ is heavy, hard and strong; when used at all, it is used

mostly for firewood and mine props. It is also used for the manufacture

of charcoal.

+SHINGLE OAK+ _Quercus imbricaria_ Michx.

THIS oak is found throughout the State with the exception of the extreme

north portion. When growing alone, the tree develops a symmetrical

rounded top, conspicuous on account of the good-sized, regular-shaped,

oblong leaves which differ in shape from most other native oaks. It

forms a handsome tree. It is sometimes incorrectly called "laurel" oak.

[Illustration: SHINGLE OAK

Forest Trees of Illinois: How to Know Them · 第 81 / 124 题