172 LANDSCAPE GARDENING. 



the size of trees in this country, viz. the Yellow locusi 

 (R.pseud.acacia), so called from the color of its wood ; and 

 the Honey locust {R. viscosa), a smaller tree, with reddish 

 flowers, and branches covered with a viscid honey-like gum. 

 Some pretty varieties of the former have been originated 

 in gardens abroad, among which the Parasol locust {Var. 

 unibraculifera) is decidedly the most interesting. We 

 recollect some handsome specimens which were imported 

 by the late M. Parmentier, and grew in his garden at 

 Brooklyn, Long Island. They were remarkable for their 

 unique, rounded, umbrella-like heads, when grafted ten or 

 twelve feet high on the common locust. 



There are two pretty distinct varieties of the common 

 Yellow locust, cultivated on the Hudson. That most fre- 

 quently seen is the White variety, which forms a tall and 

 narrow head ; the other is the Black locust, with a broad 

 and more spreading head, and larger trunk ; the latter may 

 be seen in fine condition at Clermont. It is a much finer 

 ornamental tree, and appears less liable to the borer than 

 the White variety. 



The Theee-thorned Acacia Tree. Gleditschia. 



Nat. Ord. Leguminosse. Lin. Syst. Polygamia, Dioecia. 



This tree is often called the Three-thorned locust, from 

 some resemblance to the latter tree. Its delicate, doubly 

 pinnate leaves, however, are much more like those of the 

 Acacias, a family of plants not hardy enough to bear our 

 climate. It is a much finer tree in appearance than the 

 common locust, although the flowers are greenish, and 

 inconspicuous, instead of possessing the beauty and fra- 



