Polygala brachysepala Blake

Polygala brachysepala Blake, Contr. Gray Herb. 47: 44. 1916.
Stems several, fruticulose below, rather densely incurved-puberulous with a few long widely spreading hairs intermixed, 2-3.5 dm. high; lowest leaves oblong-oval or obovate, 5-10 mm. long, the middle and upper ovate, 2.8-4.5 cm. long, 1.2-2 cm. wide, acuminate, mucronulate, sparsely incurved-puberulous with a few long loose hairs intermixed, with about 5 pairs of whitish lateral veins; racemes 5-7 cm. long; flowers apparently ochroleucous ; sepals ovate, acute, sparsely incurved-puberulous, ciliate, the upper 1.7-2 mm. long, the lower 1-1.5 mm. long; wings suborbicular, 5.3-5.5 mm. long, 4.5-4.8 mm. wide, broadly rounded, at base scarcely unguiculate, sparsely ciliolate. sparsely and finely puberulous along costa; keel 4.5-5.7 mm. long; capsule oval, densely incurved-puberulous, 9.5 mm. long; seed silky-pilose, 4.8 mm. long; aril cloak-like, appressed, 3.5 mm. high, with obscurely pilosulous umbo and deep subentire scarious margin.
Type locality: Las Canoas, San Luis Potosf. Distribution: San Luis Potosi, Guerrero, and Morelos.