132 TREES OF NEW ENGLAND. 



Inflorescence. Late May or early June. Showy and abun- 

 dant, in loose, pendent, axillary racemes ; calyx short, bell- 

 shaped, 5-cleft, the two upper segments mostly coherent ; 

 corolla shaped like a pea blossom, the upper petal large, side 

 petals obtuse and separate ; style and stigma simple. 



Fruit. A smooth, dark brown, flat pod, about 3 inches 

 long, containing several small brown flattish seeds, remaining 

 on the tree throughout the winter. 



Horticultural Value. Hardy throughout New England in 

 all dry, sunny situations, of rapid growth, spreading by under- 

 ground stems, ordinarily short-lived and subject to serious 

 injury by the attacks of borers. Occasionally procurable in 

 large quantities at a low rate. In Europe there are many 

 horticultural forms, a few of which are occasionally offered in 

 American nurseries. The type is propagated from seed, the 

 forms by grafting. 



PLATE LXVII. ROBINIA PSEUDACACIA. 



1. Winter buds. 



2. Flowering branch. 



3. Flower with corolla removed. 



4. Fruiting branch. 



Robinia viscosa, Vent. 

 CLAMMY LOCUST. 



This tree appears to be sparingly established in southern 

 Canada and at many points throughout New England. 



Common in cultivation and occasionally established through 

 the middle states ; native from Virginia along the mountains 

 of North Carolina, South Carolina, and Georgia. 



Easily distinguished from R. Pseudacacia by its smaller 

 size, glandular, viscid branchlets, later period of blossoming, 

 and by its more compact, usually upright, scarcely fragrant, 

 rose-colored flower-clusters. 



