214 Engelmann and Gray, 



ing from the internal angle at the summit. S. Elliottii has 

 narrower leaves, shorter peduncles, and about 9 orbicular car- 

 pels, which are only slightly bimucronate. 



25. Malvaviscus Drummondii, Torr. &f Gr. Fl. I. p. 230. 

 Wet places, Houston. August. Leaves 4 or 5 inches in 

 breadth. This proves to be a very ornamental plant in culti- 

 vation. 



26. Vitis bipinnata, Torr. &f Gr. Prairies, Houston. 

 June. 



27. Vicia Ludoviciana, Nutt. Galveston and Houston. 

 April. 



28. Vigna glabra. Savi ? Thickets, Houston, &c. 

 June, July. — The plant is hirsute, but the leaves are almost 

 glabrous when old ; the flowers hardly larger than those of 

 the garden bean ; the vexillum pale yellow, the carina deep 

 yellow. Legume compressed, somewhat torulose, black, 

 hirsute with whitish hairs ; the seed black, with a white 

 hilum. The leaflets are broadly oval ; but there is a variety 

 P angustifolia, which has lanceolate or linear-lanceolate 

 leaves. Near brackish water on the coast of Galveston Bay. 

 July. 



29. Rhynchosia minima, DC; Torr. fy Gr. Fl. I. p. 687. 

 Houston. September. 



30. R. menispermoidea, DC. With the preceding, in 

 hard, clayey soil. 



31. Daubentonia longifolia, DC. Houston. August. 



32. Tephrosia onobrychoides, Nutt. A variety with 

 silvery pubescence, and somewhat persistent stipules. Flow- 

 ers white, soon turning to pale scarlet; the vexillum green 

 in the middle. Prairies from Houston to the Brazos. April, 

 August. 



33. T. Virginiana, Pers., and 



34. Indigofera leptosepala, Nutt. Houston and the 

 Brazos. June, July. 



35. PSORALEA RHOMBIFOL1A, ToTT. fy Gr. Fl. I. p. 303. 



Sandy places, Galveston Island, May. (Also collected by Dr. 



