Syringidium atropurpureum Lindau, Notizbl. 8: 142. 1922. The specific epi- thet alludes to the dark purple corollas. Type collected in open place in forest at Espíritu Santo, vicinity of Ocaña, Norte de Santander, Colombia, November 18, 1879, by W. Kalbreyer (No. 1252). Type in the Berlin Herbarium. Photograph in U. S. National Herbarium (Field Mus. No. 8802). Small repent herbs up to about 30 cm. long; stems subquadrangular, hirtellous, the hairs mostly upwardly curved, mostly about 0.3 mm. long or a few up to 0.5 mm. long; leaf blades lanceolate, up to 10 em. long and 2.5 cm. wide, short-acuminate (the tip itself blunt), narrowed at base, moderately firm, entire, both surfaces hirtellous, the hairs curved, ascending, 0.2 to 0.5 mm. long, the costa and lateral veins (8 to 9 pairs) rather prominent; petioles 5 to 15 mm. long, hirtellous; flowers borne in lax racemelike panicles up to 10 cm. long and 1 to 3 cm. broad, the peduncles (up to 3.5 cm. long) and the rachis densely hirtellous, the hairs mostly spreading, up to 0.25 mm. long, whitish, the branches of the panicle (lowermost up to 1 cm. long) slender, densely hirtellous, bearing at tip a pair of small bracts sub- tending a mature flower and 2 flanking immature ones; bracts sub- tending the branches of the inflorescence lance-subulate, the lower- most up to 5 mm. long and 0.75 to 1 mm. wide, gradually narrowed to a subacute tip, hirtellous; pedicels of mature flowers about 1 mm. long, hirtellous; calyx 5 mm. long, densely hirtellous, the segments 5 mm. long, 0.5 mm. wide at base, gradually narrowed to a subacute tip; corolla 2 cm. long, densely white-pubescent (except the narrow glab- rous portion), the hairs spreading or ascending, up to 0.64 mm. long, the corolla tube geniculate, 2.5 mm. broad at base, narrowed at 3 mm. above base to 1.5 mm., thence rather abruptly enlarged into a sub- cylindric subventricose tube 5.5 mm. broad near middle and 3.5 mm. broad at throat, the posterior lobe (or lip) broadly ovate and rounded, 2 mm. long, 2.5 mm. wide, minutely 2-lobed at tip, the 3 anterior lobes (lower lip) ovate, 1.5 mm. long and broad, rounded; stamens exserted 8 to 10 mm. beyond the mouth of the corolla tube, glabrous, the anthers 2.5 mm. to 3 mm. long and 1 mm. broad, rounded at both ends; style about 15 mm. long, the stigma minute; ovary glabrous; mature cap- sules not seen. NORTE DE SANTANDER: Espíritu Santo, Kalbreyer 1252 (K, isotype).