Senna pallida var. longirostrata (Britton & Rose) H. S. Irwin & Barneby

Peiranisia longirostrata Britton & Rose, sp. nov
Branches, petioles and rachis densely short-villous. Stipules filiform, 8-12 mm. long, caducous; leaflets 6-10 pairs, 1-2 cm. long, most of them narrowly obovate, rounded or obtuse, broadly cuneate at base, green and slightly hairy above, pale and densely strigose beneath; gland between the lower pair of leaflets oblong-clavate ; inflorescence paniculate; bracts filiform, caducous; pedicels slender, villous, 1-1.5 cm. long; sepals orbicular, 6-7 mm. in diameter, glabrous or nearly so; petals yellow, 13-14 mm. long; anthers of the 2 or 3 longer stamens tapering into a very slender abrupt beak 3 mm. long; ovary densely white-Ianate; legume 8-12 cm. long, 5-6 mm. wide, somewhat pubescent, stipitate, apiculate.
Veracruz and Guatemala. Type from Solola, Guatemala, January 27, 1915, E. W. D. Ilolway 134.