Forest Trees of Illinois: How to Know Them — John Stuart Mill — John Shaqi
Forest Trees of Illinois: How to Know Them
John Stuart Mill · en
The pumpkin ash, _Fraxinus tomentosa_ Michx., grows in deep river
swamps in southern Illinois. It is a tall slender tree, usually with a
much enlarged base. The twigs are light gray. The leaves, with 7 to 9
leaflets, smooth above and soft downy below, are from 10 to 18 inches
long.
The black ash, _Fraxinus nigra_ Marsh., appears occasionally on the
flood plains in the northern part of the State. It may be known by its
ashy light gray bark, its very thick twigs and sessile, long-pointed
sharply serrate leaflets.
+CATALPA+ _Catalpa speciosa_ Warder
THIS is a native to the Wabash Valley of Illinois, but has been widely
planted and has spread somewhat farther as a result of cultivation. It
is a medium sized tree with a short trunk and broad head with spreading
branches. Because of its attractive flowers and conspicuous heart-shaped
leaves, it is considerably used for shade and ornament. The _bark_
varies from dark gray to brown, slightly rough, being divided in narrow
shallow strips or flakes. The _leaves_ are simple, opposite, oval,
long-pointed, 6 to 10 inches long, and heart-shaped at the base.
[Illustration: CATALPA
Leaf, one-third natural size. Twig, two-thirds natural size.]
The _flowers_ appear in clusters or panicles in May or June. They are
white with purple and yellow markings, and this makes them decidedly
showy and attractive. The _fruit_ consists of a bean-like pod, 8 to 16
inches long. It hangs on the tree over winter and gradually splits into
2 parts, or valves. The seeds are about 1 inch long and terminate in
wings that are rounded and short-fringed at the ends. They are freely
carried by the wind.
The _wood_ is rather soft, light, coarse-grained and durable in contact
with the soil. It is used for fence posts, poles and fuel, and
occasionally for railroad ties.
The paulownia, _Paulownia tomentosa_ (Thumb). Steud., is a large tree
native of China with the aspect of the catalpa with broad opposite
leaves. Its upright pyramidal clusters of pale violet flowers which
appear with the unfolding of the leaves are strikingly handsome. The
individual flowers are bell-shaped, two inches long and spotted with
darker purple.
DEPARTMENT OF CONSERVATION
Division of Forestry
THE State Division of Forestry was organized in 1926 as a division of
the Department of Conservation. It was organized at that time as a
result of an increased need for proper forestry practices within the
State on the part of the owners of timber land and potential timber
lands.
The objectives of the Division are as follows:
1. To promote and assist in the reforestation of idle lands unfit for
agriculture.
2. To prevent and control woods fires.
3. To control erosion by the planting of trees.
4. To establish State forests to act as demonstration areas in timber
land management.
5. To assist Illinois farmers, landowners, and corporations in
woodland management practices.