Boerhaavia hitchcockii

Boerhaavia hitchcockii Standley, sp. nov
? Boerhaavia anisophylla micrantha Heimerl, Ann. Cons. Jard. Geneve 5: 187. 1901. Boerhaavia gracillima Standley, Contr. U. S. Nat. Herb. 13: 420, in part. 1911. Not B, gracillima Heimerl, 1889.
Perennial; stems prostrate or procumbent, up to 2 meters long, much branched, the branches stout, glandular-hirsute below and minutely puberulent, minutely puberulent above; petioles stout, 0.5-2 cm. long; leaf -blades ovate-orbicular, broadly oval, or broadly deltoidovate, rarely ovate-oblong, 1.5-3.2 cm. long, 0.8-2.5 cm. wide, subcordate or rounded at the base, rounded and apiculate to obtuse or rarely acute at the apex, subsinuate, thick and firm, green above, glaucous' or glaucescent beneath, hirtellous or sparsely glandular-pilose, glabrate in age; inflorescence a much branched, broad, naked, terminal cyme, the branches slender or filiform, ascending or divergent, glabrous, the numerous flowers solitary on filiform pedicels 5-10 mm. long, the bracts minute, lanceolate, deciduous or subpersistent, purplish; perianth purplish-red, 5-6 mm. broad, viscid-puberulent ; stamens 3; fruit narrowly obovoid, rounded at the apex, 3 mm. long, densely glandular-puberulent, 5-angulate, the angles rounded, smooth, the sulci smooth.
Type collected at Tehuacan, Puebla, Mexico, August 9, 1910, A. S. Hitchcock (U. S. Nat. Herb.
no. 61 8514) .
Distribution: Vicinity of the type locality.