Stems procumbent and ascending, 3–9 in. long, 1/2 in. thick, very obtusely 5–6-angled, glabrous; angles with small rigid spreading teeth (rudimentary leaves) 1/2 lin. long, above each of which is a curved transverse impressed line connecting the grooves between the angles. Cymes sessile near the base of the young shoots, 3–5- (or more- ?) flowered; pedicels 1/4– 1/3 in. long, glabrous. Sepals 1/4 in. long, lanceolate, acuminate, very spreading, glabrous. Corolla campanulate, about 1/2 in. long, 3/4–1 in. in diam., outside dull purple, very rough with numerous small pointed papillæ; inside uniformly blackish-purple, densely covered with pointed papillæ; lobes deltoid, acuminate. Outer coronal-lobes about 1/3 lin. long and broad, subtruncate, slightly emarginate, intense blackish-crimson; inner coronal-lobes 1/2– 2/3 lin. long, lanceolate-subulate or linear, acute or obtuse, yellowish, their tips slightly exceeding the anthers and very slightly upturned, not produced into subulate points.
