174 
LANDSCAPE GARDENING 
larger and heavier foliage, will at once produce a charming 
variety. 
The Three-thorned Acacia has been strongly recom- 
mended for nedges. It is too liable to become thin at the 
bottom, to serve well for an outer inclosure, but if kept 
well trimmed, it forms a capital farm fence and protection 
against the larger animals, growing up in much less time 
than the hawthorn. Like the locust, it has the disadvan- 
tage of expanding its foliage late in the spring. In the 
strong rich soils which it prefers, it grows very vigorously, 
and is easily propagated from seeds. 
The Three-thorned Acacia ( G . triacanthos) is the prin- 
cipal species, and is indigenous to the states west of the 
Alleghanies. G. monosperma is another kind, which is 
scarcely distinguishable from the Three-thorned, except in 
having one-seeded pods. The seedlings raised from G. 
triacanthos are often entirely destitute of thorns. 
There is a fine species called the Chinese ( G . horrida), 
with larger and finer foliage, and immense triple thorns, 
which is interesting from its great singularity. A tree of 
this kind which we imported, has stood our coldest winters 
perfectly uninjured, and promises to be beautiful and very 
hardy. Some noble specimens of the common Three- 
thorned Acacia may be seen upon the lawn at Hyde Park, 
the fine seat of the late Dr. Hosack. 
The Judas Tree. Cercis. 
Nat. Ord. Leguminosae. hin. Syst. Decandria, Monogynia. 
A handsome low tree, abou t 20 feet in height, which is 
