Oldenlandia pringlei B. L. Rob.

Oldenlandia pringlei B. L. Robinson, Proc. Am. Acad. 27: 169
1892.
Cespitose perennial, from long slender scaly rhizomes, about 1 dm. high, erect or ascending,
much branched, the branches slender, granular-puberulent, densely leafy; stipules minute,
triangular, succulent; leaves sessile, often with fascicles of leaves in their axils, the blades
linear, 4-12 mm. long, 0.6-1.3 mm. wide, acute at the apex, slightly narrowed at the base,
very thick and succulent, glaucescent, granular-puberulent or glabrous; flowers mostly in
axillary or terminal cymes, or rarely solitary in the axils and pedicellate, the cymes few-flowered,
pedunculate, the branches granular-puberulent, the pedicels 6 mm. long or shorter, sometimes
wanting; hypanthium about 1 mm. long, granular-puberulent or glabrous, the calyx-lobes
shorter, ovate-oblong, obtuse or acutish; corolla salverform, 5-6 mm. long, the tube stout,
cylindric, several times as long as the calyx-lobes, the lobes oblong, obtuse or acutish, much
shorter than the tube, papillose within; anthers included or short-exserted; capsule obovoid-
turbinate, 2.5 mm. long, terete, smooth; seeds minute, obtusely angulate.
Type locality: Alkaline plains, Hacienda de Angostura, San Luis Potosi. Distribution: San Luis Potosi.