Themistoclesia pariensis Luteyn, Bull. Torrey Bot. Club 112(4): 449, fig. 1 J-F. 1985.  Type.  Venezuela.  Sucre:  Peninsula de Paria, Cerro de Humo, along narrow ridge to the N between forest and Cerro La Pavita, 1250-1273 m, 4 Mar 1966 (fl), Steyermark 95028 (holotype, NY;  isotypes, K, L, US, VEN).  Image: Line-drawing.

        Epiphytic shrub; mature stems terete, glabrous, reddish- to grayish-brown when dry;  young twigs terete, puberulent, reddish-brown when dry.  Leaves coriaceous, ovate, 3-3.5(-4.5) x 2-2.5 cm, basally obtuse or rounded, apically short-acuminate with apex itself blunt, marginally inconspicuously crenate, puberulous above, and glabrous beneath but with scattered glandular fimbriae;  3-5(-7)-plinerved, the nerves anastoming distally, midrib conspicuous, impressed above and raised beneath, lateral nerves plane to impressed above and raised and conspicuous beneath, veinlets obscure above but raised and conspicuous beneath;  petiole terete, smooth, puberulous, 2-3 mm long, reddish-brown when dry.  Inflorescence apparently cauliflorous, a cluster of 1-several peduncles, each peduncle ca. 1-1.5 mm long and bearing 1 fertile flower;  rachis terete, glabrous, 1.5-2.5 mm long;  floral bracts narrowly ovate, acuminate, marginally glandular-fimbriate, ca. 1 mm long;  pedicels subterete, angled, striate, glabrous, continuous with the calyx, 4-5 mm long;  bracteoles basal, similar to floral bracts but up to 0.75 mm long.  Flowers with calyx maroon-red to brownish-green when fresh, glabrous, 3-4 mm long;  hypanthium obpyramidal, strongly angled below the sinuses, slightly rugose, 1.5-2.5 mm long;  limb spreading-campanulate, 1.5 mm long including the lobes;  lobes triangular, apiculate, 0.5 mm long;  sinuses flat to broadly rounded;  corolla subcylindric, glabrous without but scattered-pilose within especially towards the mouth, 9-10 mm long, red to scarlet when fresh, the lobes deltate, acute, 1.3 mm long, white when fresh;  stamens 10, equal, 7 mm long;  filaments distinct, glabrous, 2.5 mm long;  anthers 5 mm long including the tubules, incurved at the base;  thecae strongly papillose, 3 mm long, dehiscing by lateral clefts nearly the length of the tubules;  style 8 mm long;  ovary 5-locular;  disc glabrous.  Fruit not seen.

        Distribution.  Endemic to Venezuela (Sucre: Peninsula de Paria), and known from only two collections;  cloud forest, at 1250-1275 m.  Rare and endangered.