Inga ruiziana G. Don

Inga confusa Britton & Rose, sp. nov
A shrub or smadl tree, the young branches densely brownish-pubescent. Rachis wingless, pubescent, bearing large sessile glands between the leaflets; leaflets 5 or 6 pairs, rarely 4 pairs, oblong, 8-20 cm. long, rounded at base, short-acuminate, pubescent on both sides when young, glabrate above in age, more or less permanently pubescent beneath, especially on the prominent veins; peduncles axillary, often in clusters, 1-3 cm. long, pubescent; spikes short, dense; calyx 4 mm. long, puberulent; corolla 7-8 mm. long, pubescent; stamens 12 mm. long, the tube about as long as the corolla; legume flat, somewhat curved, 10-12 cm. long, 2-2.5 cm. broad, rounded at base and apex, mucronate, somewhat pubescent, especially on the elevated margins.
Panama and Costa Rica. Type collected along the Sambu River, southern Panama, February, 1912, Pittier 5533.