Epiphytic herbs or subshrubs; stems woody at the base, 3-6 mm in diamn., green when young, brown or reddish hirsute. Leaves of a pair strongly unequal; larger leaf oblong, 5.5-10 cm long and 1.9-3.0 cm wide, membranous to fleshy, the apex acute to shortly acuminate, rounded or subcordate at the base, more or less serrate, above green and densely hirsute, the hairs reddish or transparent, 4-13 celled, also a few 2-3 celled white adpressed hairs, below green to purplish, densely hirsute, the hairs brownish, transparent or reddish, 4-13 celled, more numerous on the veins; petioles 1-4 mm long; smaller leaves ovate, 1.4-3.9 cm long and 6-14 mm wide, acute, sessile, green, apparently soon caducous. Flowers 2-3 in each axil; bracts linear, 2-4 mm long, reddish hirsute; pedicels 8-14 cm long, reddish to brown hirsute; calyx lobes linear, erect, 1.5-2.3 cm long, the apex long acuminate, entire or remotely toothed, the teeth 2-4, 1 mm long at most, the lobes green or red, long reddish or brown hirsute; corollas scarlet or rose with yellow or white stripes running along the anterior side of the tube, funnelform but strongly zygomorphic, 5.6-6.8 cm long, ca. 4 mm in diam. above the base, becoming ca. 9 mm at the throat, externally long reddish pilose, internally short pilose, the lobed portion of the corolla, 2.1-2.9 cm long, the lobes strongly unequal, the posterior pair connate, truncate at the apex, 8-11 mm long, the anterior lobe, 1.2-1.8 cm long, reflexed; filaments yellow, glabrous above, the anthers exserted; ovary pilose, the style yellow, glandular pilose, the stigma stornatomorphic. Fruits ovoid, ca. 7 mm in diarm., white. Chromosomes 2n = 18 (Lee, 1967).
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