81 



Bohinia pseudacacia, L. (Common Locust.) The Locust is a 

 native of Pennsj'lvania and westward. It lias so long been cultivated 

 in this vicinity that it has in many places the appearance of being a 

 native of the county. 



Owing to the attacks of borers, the Locust trees planted singly 

 along walls or scattered through a field are liable to be broken by 

 high winds, and consequently the tree is less frequently met with than 

 formerly. According to Emerson the pests which attack the various 

 species of Robinia are less troublesome among trees planted in groves. 

 Hon. Benj. Perley Poore, at Newbury, has succeeded with the Locust 

 cultivated in this manner admirably, and it is to be regretted that the 

 planting of so valuable a tree should be discontinued. 



Mr. Sears states that the fallen leaves are considered as more of an 

 improvement to the land than those of any other tree, a fact corrobo- 

 rated by Mr. Poore's experience. Mr. Sears gives the measurements 

 of several Locusts as follows. One on the Gardner farm near Salem 

 being 12 feet in circumference. Three trees on the Pedrick estate, 

 Danvers, measured respectively, 6, 7, and 8 feet in circumference, and 

 were from 50 to 80 feet high. 



Bobinia viscosa, Vent. (Clammy Locust.) A smaller tree than 

 the last, with the inodorous flowers in shorter and more compact 

 clusters. A native of Virginia, and it is frequent in cultivation, 

 spreading extensively by suckers. 



Robinia hispida, L. (Rose Acacia.) Also from Virginia. It is 

 occasionally found as a garden plant, where it is a small shrub. 



Wistaria friitescens, D C, from West Virginia, etc., is occasionally 

 cultivated. 



SoPHORA Japonica, of Japan, is hardy in the county, and is now 

 and then cultivated. 



Cladrastis tinctoria, Raf. (Yellow Wood), the Virgilia lutea, 

 Michx. f., from Kentucky, is also hardy, but requires a sheltered place. 



Cercis Canadensis, L. (Red-bud), of New York State, is a quite 

 hardy and handsome shrub or tree in cultivation. 



Gleditschia triacanthos, L. (Three-thorned Acacia. Honey- 

 Locust.) This tree, very common in the vicinity of Salem, is a 

 handsome, rapidly growing shade tree, yet, if persistently pruned 

 when small, it will form an admirable hedge. Trees of this species 

 are not uncommon from 18 inches to 2 feet in diameter, and from 50 

 to 60 feet high. This species is a native of Pennsylvania. 



ROSA.CEJE. 



(ROSE Family.) 

 Prunus Americana, Marshall. (Wild Yellow, or Red Plum.) 

 Specimens of the flowers of this tree, collected by AVilliam Oakes in 



