Epiphytic shrub, totally glabrous;  mature branches terete, with gray bark cracking longitudinally;  twigs subterete and broadly flattened, smooth to slightly striate, nitid, reddish-brown, provided with minute spherical glnads ca. 0.1 mm diam. along length which are sunken into small pustules.  Leaves elliptic, 4-7.7 x 1.5-2.6 cm, basally obtuse, sometimes rounded or cuneate, apically conspicuously caudate-acuminate with acumen 1.5-2.5 cm long, glandular fimbriae sunken into lower lamina and minute subspherical glands sunken into upper lamina;  3(-5)-plinerved from base, midrib impressed above and raised beneath, inner pair of lateral nerves impressed through proximal 3/4 otherwise plane above, raised but inconspicuous beneath, outer pair of lateral nerves (when present) plane and obscure on both surfaces;  petiole subterete, slightly canaliculate adaxially, rugose, 4-6 mm long and 0.7-1 mm diam.  Inflorescence 2-4-flowered, encircled at base by subcoriaceous, oblong, apically rounded bracts ca. 26(-40?) x 18 mm;  rachis stout, 5-6 mm long and 2.5-4 mm in basal diam., proximal 3 mm a peduncle made up of overlapping bract scars;  floral bracts oblong or obovate, 32-40 x 15-26 mm, apically rounded or shallowly emarginate;  pedicels subterete, broadly bluntly angled, glabrous, 5-8 mm long and 1.5-3 mm diam., eglandular;  bracteoles linear-lanceolate or oblong-lanceolate, 6-11.5(-15) x 1.5-3(-5) mm, margins densely glandular with spherical glands which are often stipitate (stipes 0.1-0.2 m).  Flowers:  calyx 8-11 mm long;  hypanthium subcylindric, 10-ribbed, 2.5-4 mm long and to 6.5 mm diam., basally apophysate with apophysis margin broadly and shallowly undulate;  limb erect to spreading, muricate, 5.5-7 mm long;  lobes triangular, 2-3 x ca. 2.5 mm, erect after anthesis, each margin provided distally with an oblong, callose gland 1.5-2 mm long and proximally with a smaller gland 0.5 mm long, these glands not contiguous at lobe tip;  sinuses obtuse;  corolla cylindric, ca. 25-32 mm long (immature), white with grayish or brownish lobe margins (fide Cuatrecasas 16164);  stamens (immature) ca. 22.5-30 mm long;  filaments alternately 1-3 mm and 9.5-10 mm long;  anthers alternately 22-28 mm and 14.5-20 mm long;  thecae alternataly 9-17 mm and 8-11 mm long;  style ca. 28-29 mm long.  Berry not seen.

    Distribution (Map).  Endemic to Colombia and known only in western Valle Dept., in dense forest and secondary growth, at elevations of 0-100 m.  Flowering specimens have been collected in February, June, and August.  Rare and endangered.