Disterigma dumontii Luteyn, Brittonia 29(2): 178, fig. 2.  1977.  Type.  Colombia.  Nariño:  between Altaquer and Junín, km 129-130, 1130 m, 30 Jan 1976 (fl), Luteyn et al. 5093 (holotype, COL;  isotypes, DUKE, F, GH, L, NY, US;  photo NY type NY neg. 9888).  Images:  Habit.  Fruit.  Line-drawing.

        Bushy shrub ca. 1 m tall;  stem terete, moderately pilose-strigose;  twigs coarsely angled, pilose-strigose with golden-brown hairs to 1.5 mm long.  Leaves oblong-elliptic, 6.5-9 x 3-4 mm, base narrowed and obtuse, apex rounded, margin entire, glabrous;  weakly 3(-5)-plinerved from the base, midrib impressed above and raised beneath, other nerves obscure;  petiole terete, ca. 1.5 mm long, weakly short-pilose.  Inflorescence with flowers axillary, solitary;  floral bracts seemingly 2, ovate, ca. 1 mm long;  pedicel terete, 0.4-2 mm long, weakly puberulent;  bracteoles located immediately below to ca. 0.75 mm below the calyx, imbricate at base, ovate to hemispheric, rounded, 1.5-2 mm long, margin ciliate.  Flowers 4-merous, with calyx 3-4 mm long;  hypanthium sharply 4-angled, 1.5-2 mm long, moderately to densely puberulent to short-pilose along the angles, also with scattered glandular fimbriae;  limb 1.5-2 mm long;  lobes ovate, acute, 1.5-2 mm long, marginally ciliate;  sinuses acute;  corolla campanulate, 8-9 mm long and 3 mm diam. at the base but expanded to 9-10 mm across the summit, dark red, glabrous but with scattered glandular fimbriae, the lobes reflexed, deltate, ca. 2.5 x 5 mm;  stamen 8, ca. 5-5.5 mm long;  filaments ca. 2-3.2 mm long, weakly to moderately pilose;  anthers 3.5-4 mm long;  thecae 1.5-2 mm long, the base incurved;  tubules 2, distinct, ca. 1.8-2 mm long, dehiscing by oblique, subterminal pores;  style inserted, glabrous.  Berry depressed-spherical, ca. 7 mm diam., translucent white, glabrous, crowned by persistent calyx lobes which become somewhat succulent.

        Distribution.  Colombia and N Ecuador, and known from only ca. 12 collections;  rainforest, premontane to montane forest at 800-1740 m altitude.  Rare.