Caesalpinia standleyi (Britton & Rose) Standl.

Poincianella standleyi Britton & Rose, sp. nov
A shrub with grayish branches, the young twigs short-pilose. Petioles very slender, 2-3 cm. long, sometimes bearing stipitatc glands; pinnae 5-9; leaflets 2 or 3 pairs, oblong to obovate, obtuse, submembranous, pinnately veined, glabrous, or pubescent on the veins, 8-12 mm. long; racemes several-many-flowered; pedicels 8-15 mm. long, slender, jointed near the top; calyx puberulent, its lobes nearly alike, about 8 mm. long; petals obovate to suborbicular, about 10 ram. long, clawed, stipitate-glandular below; stamens somewhat longer than the petals; legume velvety-pubescent, eglandular, obliquely oblong, 4-7 cm. long, 1.5-2 cm. wide; seeds elliptic, 9-10 mm. long.
Tepic, Naa"it, and Sinaloa. Type from Acaponeta, Tepic, April 9, 1910, Rose, StandUy & Russell 14190.