OF ARTS AND SCIENCES. 451 



prickles ; leaflets 2 or 3 pairs, ovate-elliptical, obtuse, 3 to 6 lines 

 long : racemes terminal, short ; pedicels 3 or 4 lines long, usually 

 subtended by a pair of prickles : flowers 4 lines, long ; filaments vil- 

 lous : ovary and style glabrous : pod rhombic-oblong, very shortly 

 stipitate, 3-seeded, an inch long. — Collected by Dr. Gregg at Bolson 

 de Mapimi, 1847, and in Coahuila by C. G. Pringle, on hills and 

 mesas about Jimulco, May, 1885 (n. 202). 



HoFPMANSEGGiA MULTiJGUA. Herbaceous, rather stout, 2 or 3 

 feet high, covered throughout (excepting the leaflets) with small 

 black substipitate glands: pinnae 6 to 10 pairs; leaflets 5 to 8 pairs, 

 oblong, finely pubescent on the margin, glandular-pitted beneath, 1 to 

 4 lines long ; stipules entire : racemes axillary, exceeding the leaves 

 (6 to 10 inches long), many-flowered ; bracts ovate, acuminate ; pedi- 

 cels jointed in the middle, 2 or 3 lines long in fruit : sepals and petals 

 3 or 4 lines long : pods oblong-rhombic, obliquely acute at each end, 

 black -glandular and somewhat pubescent, an inch long, 2-seeded. — 

 Hillsides near Chihuahua ; C. G. Pringle, May and August, 1885 

 (n. 138, 371). 



HoFFiiANSEGGiA FRUTicosA. Shrubby, about 6 feet high, with 

 brown bark, the slender branchlets, foliage, and inflorescence canes- 

 cent with fine pubescence : stipules laciniate ; leaves small, with 1 or 

 2 pairs of ijinnas ; leaflets 3 or 4 pairs, oblong, obtuse, an inch or two 

 long, glandular-dotted beneath, as also the petioles: racemes terminal, 

 shortly pedunculate, 2 inches long in fruit ; bracts laciniate ; pedicels 

 slender, jointed near the summit : calyx and petals 2h lines long : pod 

 lunate, an inch long, finely pubescent, dotted with small black sessile 

 glands. — In mountain canons near Jimulco, Coahuila ; C. G. Pringle, 

 April, 1885 (n. 230). 



Bauiiinia (Casparia) uniflora. a large shrub, with grayish- 

 brown bark: stipules obsolete; petioles short, bifoliolate, apiculate; 

 leaflets coriaceous, obliquely obovate, rounded or retuse above, cuneate 

 at base, 2-nerved and reticulately veined, somewhat puberulent or 

 glabrous, 3 to 5 lines long: flowers solitary, terminal, or apparently 

 lateral, shortly pedicellate; calyx puberulent; petals purple, 9 or 10 

 lines long, with greenish subtomentose claws : sterile stamens connate 

 at base, subtomentose, Ih lines long, the fertile glabrous and nearly 

 equalling the petals : ovary tomentose, long-stipitate, beaked with a 

 long style. — In canons near Jimulco, Coahuila; C. G. Pringle, April, 

 1885 (n. 174). Closely resembling B. ramosissima, Bentli., in habit, 

 differing in the shorter petioles, smaller 2-nerved leaflets, solitary flow- 

 ers, much shorter sterile stamens, etc. 



