Brongniartia pringlei Rydb.

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.