Pomaria wootonii (Britton) B. B. Simpson

Larrea wootonii Britton, sp. nov
Sufifrutescent, branched, about 4 dm. high, the branches, petioles, rachis and inflorescence densely short-pubescent and with black, sessile glands. Stipules nearly filiform, pubescent, about 5 mm. long; pinnae 5; leaflets 4 or 5 pairs, oblong-elliptic, 5-6.5 mm. long, pubescent on both sides, copiously black-glandular-dotted beneath; racemes 6-9 cm. long, several-flowered; fruiting pedicels 5-7 mm. long; flower-buds pubescent and black-glandular; legume obliquely oblong, about 1.5 cm. long and 6 mm. wide, densely short-pubescent and blackglandular-dotted, without marginal processes.
Chamal, Tamaulipas, June 25, 1919, E. 0. Wooton.