Brongniartia pauciflora Rydb.

Brongniartia pauciflora Rose, sp. nov
A low shrub; branches glabrous; leaves about 5 cm. long; stipules large, obliquely cordate, 8-10 mm. long, acute; petiolules scarcely 1 mm. long; leaflets 5-11, broadly oval, acutish at the base, cuspidate at the apex, 1-1.5 cm. long, thin, faintly veined, glabrous; flowers solitary in the axils; pedicels about 1 cm. long; calyx glabrous, 10-12 mm. long, the lobes lanceolate, acute; corolla about 1.5 cm. long; banner orbicular, short-clawed; wings and keel-petals obliquely obovate, the former with a deltoid basal auricle; ovary glabrous; pod unknown.
Type collected at the mouth of Rio Quintepec, district of Cuicatlan, Oaxaca, June 20, 1919, Conzalti i? Cancino 2439 (U. S. Nat. Herb. no. S41050).