Senegalia painteri Britton & Rose

Senegalia painteri Britton & Rose, sp. nov
An unarmed shrub, the twigs reddish -brown, glabrous. Stipules minute, ciliate; petiole and rachis pilose, bearing a small depressed gland between each pair of pinnae; pinnae 2-4 pairs; leaflets 6-10 pairs, linear-oblong, somewhat oblique, acute, 4-7 mm. long, strongly nerved beneath, ciliate, but otherwise glabrous, the midvein excentric; peduncles 10-15 mm. long; legume thin, glabrous, 10-12 cm. long, 2 cm. broad, rounded at apex, apiculate, cuneate at base, with a stipe 8-10 mm. long.
Near Higuerillas, Queretaro, August 23, 1905, /. N. Rose 9S05.