4' 



PULSE FAillLY. 10] 



many-seC'Jed, tne upper or seed-bearing suture margined. Trees or shnihs. 

 Leaflets petialulate, stipellate ; base of the leafstalks enlarged, covering 

 the bads of the ensuing year. 



1. R. Psend-aca'cia, L. Branches virgate, armed with stipular prioides ; 

 leaflets oblono--ovate ; racemes loose, drooping ; legumes smooth. 

 False-AG A.CIA Eubixia. Locust-tree. 



stem 30-60 or 80 feet bigli, and 1-2 feet in diameter. Leaflets 3 or 4-8 or 9 pairs, 1-2 

 inches long, each wUh a small subulate stitel at base ; comniGn petiole pinnate nearly to 

 the base. With 2 stout pricicles in place of stipules. Racemes inches long. Corolla 

 white. Legume 2-3 iuclics long. 



Mountain furc-sts : Pennsylvauia to Arkaiisas. Fl. May- June. Fr. September. 



Qui. The Locust-tree, though generally found in the Middle and 

 Eastern States, is only truly indigenous in the Western and Southern 

 portions of the Union. It attains its greatest perfection in Kentucky 

 and Tennessee, Y»'here it reaches to the height of 90 feet, with a diameter 

 of 4 feet. The timber is one of the most valuable, whether for strength 

 or durability ; in the former quality it ranks but little below the oak, 

 while its resistance to decay, even when exposed to the most destructive 

 influences, exceeds that of the wood of any other of our forest-trees. It 

 is largely employed in ship building, and is preferred to any other wood 

 for treenails, as the pins are called which fasten the planks to the frame 

 of the vesseL For posts, rail-road ties or sleepers, (fee, it is invaluable. 

 The Locust is often planted as an ornamental tree ; it has a graceful 

 habit, and is highly — even oppressively — fragrant, when in floM'er. The 

 disadvantages attending its culture about dwellings are, the readiness 

 with which its branches are broken by the wicds, the many suckers its 

 roots send up, and the numerous insects that live upon it. Indeed, so 

 many insects prey upon this tree, that in some localities it seldom attains 

 any great size. It is said that when the trees are planted closely, so as 

 to form Locust Groves, they are much less liable to the attacks of worms 

 than when they grow singly. Considering the value of the timber and 

 the rapidity of its growth, even on light and poor land, the culture of 

 the Locust is worthy of much more attention than it has yet received at 

 the hands of our farmers. The Clammy Locust (R. visco'sa, Vent.) is 

 inferior in size and value ; it has the branches clothed with viscid glands, 

 and is found on the southern borders of Virginia, and further South. 

 The Rose Acacia (R. his'pida, L.) is a shrub 3-8 feet high, with large 

 rose-colored flowers. It is often cultivated, but is inclined to spread and 

 become troublesome if not kept within bounds. * 



G. WISTA'RIA, Nutt. Wistakia. 



[Xamed for Prof. Caspar Wistar, of the University of Pennsylvania.] 



Calyx campanulate, somewhat 2-lipped ; the upper lip of 2 short teeth ; 

 the lower of 3 longer ones. Standard large, with 2 callosities at base ; 

 keel scythe-shaped ; ivings with one or two auricles at base. Pod stipi- 

 tate. elongated, nearly terete, knobby, many-seeded. Twining shrubs 



