84 
Mariana. 
pseud-acacia. 
Tirginiana, 
DIADELPHIA, DECANDRIA. 
1. C. leaves ternate ; calix much larger than the 
linear -lanceolate bractes, oblong-tubulous, 5- 
cleft; legumen torulose, with convex front j 
seeds glutinous. — Mich. 
A very elegant plant, with large rose-coloured flowers. On 
the rocks bordering the Schuylkill, about half a mile above 
Lemon-hill. Scarce. 1 have found it nowhere else. Perennial. 
July, August. 
326. ROBINIA. Gen. pi. 1195. {Legiiminosce.) 
Calix small and campamilate^ 4-cleft^ upper 
segment bifid. Legume compressed and 
elongated^ many-seeded^ seeds compress- 
ed^ small. — JV^utt. 
1. R. leaves oddly-pinnate ; stipules thorny ; ra- 
cemes pendulous ; calicine teeth awnless j le- 
gumes smooth. — Willd. 
Icon. Schmidt, arb. 32. (Pursh.) 
White Locust-tree. American Locust. False 
Acasia. 
A very ornamental tree, with white, sweet-scented flowers. 
Its wood is extremely durable, resisting injuries from moisture, 
for which reason it is much used for making the posts of rail 
fences throughout the United States, also the posts of gates. 
On the borders of fields for ten miles around Philadelphia, 
common. I2 . May, June. 
327. TEPHROSIA. Persoon. {Leguminosx.') 
Dentures of the calix subulate, subequal. Sta- 
mina monadelphous. Legume compressed, 
subcoriaceous. — JVutt, 
1. T. erect; white-vil!ous ; folioles (17-21) oval- 
oblong, acuminate; raceme terminal, short, 
subsessile ; legumes retro-falcate, villous ; cali- 
ces woolly. — Pers, and Pursh. 
