OF ARTS AND SCIENCES. 405 



Stipules large (an inch long or less), foliaceous, semicordate or obliquely 

 reuiform-ovate, distinct or often connate by the upper margins ; leaves 

 1-5-foliolate, or the single leaflet sometimes connate with the stipules ; 

 leaflets ovate or broadly elliptical, abruptly acute, rounded or subcor- 

 date at base, coriaceous, prominently reticulated and concolorous both 

 sides, I to 1|- inches long ; stipules small, rigid and spinose : peduncles 

 axillarj', 1 or 2 inches long, 1-4-flovvered ; bracts foliaceous : corolla 9 

 to 12 lines long, twice longer than the calyx, yellowish brown turning 

 to purple in drying : pods 2 inches long by 9 lines wide, 2-4-seeded. 

 Tequila, in rich bottoms among the hills, (411.) 



Tephrosia talpa. Stout, erect, densely covered throughout with 

 a soft gray subtomentose pubescence, more straight and silky upon 

 the leaves, especially beneath : stipules elongated (5 or 6 lines long), 

 linear; leaflets 6 to 8 pairs, oblong or the lower elliptical, rounded 

 at both ends, 1 to 1| inches long by 4 to 8 lines broad: racemes ter- 

 minal, 4 to G inches long ; flowers nearly sessile, somewhat fascicled : 

 calyx-lobes broad, acuminate, exceeding the tube ; corolla rose-color, 

 8 lines long: pods spreading, very densely tomentose, 1|^ to 2 inches 

 long by 3 lines broad, about 6-seeded. Rio Blanco, on hillsides under 

 pines, growing in clumps; July. (161.) 



Tephrosia toxicaria, Pers. {T. Schiedeana, Schlecht.) Guada- 

 lajara and Rio Blanco, among underbrush on the sides of deej) canons ; 

 August. (220 in part, 322.) 



Tephrosia affinis, Watson. About 2 feet high : leaflets 4 to 8 

 pairs : pods 2 inches long by 3 lines broad. Rio Blanco, in deep 

 canons; August and September. (220 in part, 594.) 



Tephrosia leptostachya, DC. Chapala, on grassy hillsides. 

 (704.) 



Diphysa suberosa. a low shrub, 3 or 4 feet high, with very thick 

 corky bark, the branchlets occasionally spinose, glabrous throughout: 

 leaflets 3 to 5 pairs, somewhat scattered on the slender rhachis, 

 oblong-obovate, acute or obtuse or sometimes retuse, often apiculate, 

 acute or acutish at base, 6 lines long by 2 to 4 broad : peduncles 

 slender, 3 to 5 lines long, 2-3-flowered ; pedicels very slender, 6 to 12 

 lines long; bracts ovate, short-acuminate: calyx 4 lines and yellow 

 corolla 6 lines long: pods nearly sessile, 1^^ to 3 inches long. Bar- 

 ranca. (123.) — "Palo santo." The powder of the bark is used as 

 a remedy for catarrh. Distinguished from described species by its entiro 

 smoothness, acuter leaflets, elongated pedicels, and nearly sessile pods. 



Sesbania longifolia, DC? A tree, 15 to 18 feet high and 6 

 inches in diameter, with smooth bark, resembling the mesquite but 



