Part 3, 1923] FABACEAE: GALEGEAE 195 



A shrub; branches villous- tomentose ; leaves 1-2 dm. long, silky-villous throughout; 

 stipules lanceolate, acute, about 1 cm. long, deciduous; petioles short, 0.5-2 cm. long; leaflets 

 13-27, short-petioluled, oblong, obtuse, or acute at each end, mucronate-aristate at the apex, 

 lanuginous-sericeous, silvery-white on both sides, 2.5-3.5 cm. long, 10-12 mm. wide; flowers 

 axillary, 2 or 3 in each axil; pedicels 1-3 cm. long; bracts ovate, acute, subcordate at the base, 

 1.5 cm. long, membranous, sericeous without; calyx campanulate, 15 mm. long, sericeous, the 

 lobes lanceolate, acute, the upper two united three-fourths their length; corolla violet, 18-20 

 mm. long; banner short-clawed, suborbicular, emarginate; wings and keelpetals similar, 

 obliquely obovate, falcate, short-clawed, with a small basal auricle; pod oblong, somewhat 

 narrowed below, tapering at the base, about 5 cm. long, nearly 2 cm. broad near the apex, 

 about 5-seeded. 



Type locality: Between Chilpanzingo and Zumpango, Guerrero. 

 Distribution: Guerrero, Puebla, Guanajuato, and Oaxaca. 

 Illustration: H.B.K. Nov. Gen. & Sp. pi. 589. 



29. Brongniartia argentea Rydberg, sp. nov. 



A shrub; young branches densely white-viilous, almost tomentose; leaves 5-8 cm. long; 

 petiole 0.5-1.5 cm. long, as well as the rachis white-tomentose; stipules ovate, 5-8 mm. long; 

 leaflets 13-17, elliptic, about 1.5 cm. long, silvery on both sides, white beneath; petiolules 

 very short; flowers mostly solitary in the axils; pedicels 1 cm. long or less; bractlets ovate, 

 4-6 mm. long, white-silky; calyx 15 mm. long, silky, the lobes narrowly lanceolate, attenuate, 

 the lowest slightly longer; corolla about 2 cm. long, rose-purple; petals all broad, the banner 

 orbicular. 



Type collected in the district of Miahuatlan, Oaxaca, May 17, 1917, Conzalti &■ Reko 3Z80 

 (U. S. Nat. Herb. no. 763898). 



30. Brongniartia sericea Schlecht. Linnaea 12: 336. 1838. 



> Brongniartia gracilis Benth.; Hemsl. Biol. Centr. Am. Bot. 2: 253. 1880. 



A shrub, about 1 m. high; young branches short-villous, almost velutinous, with white 

 or sometimes blackish hairs; leaves 5-15 cm. long; stipules lanceolate, acute, deciduous; 

 leaflets 15-25, silvery-silky on both sides when young, in age glabrate, often becoming glabrous 

 except on the midrib beneath, 1.5-3 cm. long, oblong or elliptic, rounded at both ends, mucro- 

 nate; flowers 1-4 in each axil; pedicels about 2 cm. long; bractlets ovate, oblique, 6-8 mm. long, 

 sericeous without, deciduous; calyx sericeous, 15 mm. long, the lobes lanceolate, acute; corolla 

 about 2 cm. long, purple; pod glabrous, the body 4-5 cm. long, about 2 cm. wide, 4-6-seeded, 

 the stipe about 1 cm. long; seeds 11 mm. long, 7 mm. broad. 



Type locality: Near Mexico. 



Distribution: Federal District, Mexico (state), and Hidalgo. 



31. Brongniartia Pringlei Rydberg, sp. nov. 



A shrub, 1 m. high; young branches densely short-villous with brown hairs; leaves 5-10 cm. 

 long; stipules thin, ovate, acuminate, nearly 1 cm. long; petiole 1-1.5 cm. long, subvelutinous; 

 leaflets 11-18, rather thin, somewhat reticulate, ovate or oval, 1.5-2.5 cm. long, mucronate, 

 rather sparingly silky on both sides; petiolules 1-2 mm. long; flowers 1 or 2 in each axil; 

 pedicels about 3 cm. long ; bractlets ovate or lanceolate, about 8 mm. long, acute, densely 

 silky; calyx about 2 cm. long, densely brown-silky, its lobes lanceolate, acuminate, the lowest 

 the longest; corolla 2.5 cm. long, rose-purple; pod glabrous, 4-6-seeded, the body 3.5-4.5 

 cm. long, 18-20 mm. wide, abruptly acute at both ends, slightly wing-margined on the upper 

 suture, the stipe less than 0.5 cm. long. 



Type collected on hills near Tultenango, State of Mexico, July 13, 1901, C. G. Pringle 9431 

 (herb. N. Y. Bot. Gard.). 



Distribution: Mexico (state), Queretaro, and Hidalgo. 



