LOCUST TREE. Of the so called locust trees, there are two genera, first the common locust or false acacia, (Robinia). The common locust, R. pseudaeacia, valuable for its timber and as an ornamental tree, when it escapes the Locust Borer unfortunately generally common thiough the West. It is, however, .said to escape, com paratively well, this pest on limestone soils. Its handsome foliage, fragrant white flowers, and invaluable timber makes it a subject of regret that it should be so almost umiversally attacked in the West. It is hardy throughout the North and southward to Tennessee, and makes a noble timber tree. The Clammy locust, R. viscosa, is a smaller tree found in the latitude of Virginia and south. The twigs and leaf stalks clammy, flowers tinged rose-color, crowded in oblong racemes, pods glandular—vispid. The bristly or Rose-acacia, R. viepida, is an ornamental flower ing shrub, a native of the mountains of southern Virginia and the South, growing from three to.
eight feet high. It is cultivated for ornament in the North but requires winter protection The honey locust, (Gieditschia,) bas two species, G. triaeanthas, a large tree armed with stout, strong thorns in threes, hut varying. The foli age is light and graceful, and the tree peculiar but handsome. It is much valued in the West as a hedge or barrier, hardy and effective where the Osage Orange will not stand. It grows in rich woods from Pennsylvania to Illinois and southwestward. The pods are from twelve to. eighteen inches in length, flat, sometimes twisted, and containing a sickish sweet pulp between the seeds. The water locust, G. monasperma, is a western tree, found in swamps in Illinois and southwestward, with slender spines, mostly single, pods oval, one-sided and pulpless.