The foliage is distinctive. The leaf has five points, 
greatly resembling a star. The leaves are large, glossy 
green through the summer and very effectively colored in 
fall. The colors ranging through the whole scale from 
yellow to purple. The chief objection to the tree for 
lawn use is the unsightliness of the large seed balls 
which may cover the ground beneath the tree in some years. 
The foliage is greedily eaten by most caterpillars, and 
during years when the Tussock Moth and Tent Caterpillars 
reach epidemic proportions, the Sweet Gum proves extremely 
attractive. These insects are readily controlled by 
spraying and they should not limit its use for either 
lawn or street purposes. 
HACKBERRY 
Several species of Hackberry (Celt is) can be used 
for shade trees. If properly grown, no more satisfac- 
tory tree can be found. The best species is Celt is 
Ocidentaltis and its varieties. These eventually exceed 
sixty feet in height, and a favored individual may de- 
velop a trunk four feet or better in diameter. On the 
whole, the tree has no bad habits. Leaf-raking is no 
more complicated by its presence, and the fruit is har- 
vested by birds. The most serious insect pest is a gall 
causing witches brooms. The tree is seriously bothered 
by this pest making it unsightly, but by pruning and 
spraying, they can be eliminated. When left to develop 
on a lawn, the tree produces rather small branches and 
continues to grow upright. When mature, the lateral 
branches may continue to grow and eventually reach con- 
siderable size. Yellow is the dominant fall color, and 
for a very short period, the yellow is quite attractive, 
but leaves are shed rather quickly after changing color. 
Selected trees might very well be used either along the 
street or on the lawn. 
HICKORY 
In this genus, we have many of the common trees of 
the Ozark region. There are a number of species, how- 
ever, and several varieties. As one might suspect, they 
grow from the flood plain to the dry hill tops. General 
ly, the Hickories are thought of as a part of a climax 
forest, and therefore, appear on the scene only in the 
final stages of the development of a wood lot. It would 
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