Epiphytic, suffrutescent, glabrous herbs; stems pendent, hollow, (0.3-)0.9-1.5 m long. Principal leaves with blades variable in size and shape, elliptic to lanceo-late, ovate or obovate, usually (1.3-)4-7(-12) cm long and 1.5-3(-4.5) cm wide, mostly 2-4(-6) times as long as wide, glabrous, thick and somewhat fleshy when fresh, coriaceous when dry, apically blunt, acute or acuminate, often with a slen-der, caudate tip to 2.5 cm long, basally rounded and abruptly contracted to gradually cuneate-tapering, marginally entire or indistinctly crenate-serrate with irregularly spaced callosities, dark green above, pale green beneath, sometimes tinged with purple; petioles 0.5-1.3 cm long, glabrous. Flowers (2.5-)3-4 cm long; pedicels solitary in the upper leaf axils, strongly ascendant, spreading or slightly deflexed, ebracteolate, (1.5-)2.5-4(-5.5) cm long; hypanthium in anthesis campanulate, basally narrowed and often long-tapering, glabrous, 5-7 mm long; calyx lobes linear, apically blunt, entire or obscurely callose-denticulate, erect to spreading or reflexed, (2-)4-10(-15) mm long, glabrous; corolla glabrous, pale cream to greenish tinged with russet red externally and creamy yellow internally, the tube ( 12-) 15-20 mm long, the lobes lanceolate to broadly linear, the 2 upper lobes 8-11 mm long, the 2 lateral lobes 6-8 mm long, the lowest lobe only ca. 4 mm long; filament tube 18-27 mm long, glabrous or sparingly puberulent dis-tally, the anthers (3-)4-5.5 mm long, externally with sparse to copious hirsutulous yellow trichomes 0.2-0.4 mm long, rarely glabrous, the 2 shorter anthers with a conspicuous tuft of wavy, pilose, soft yellow or rarely whitish? trichomes. Berries little inflated, 5-9(-12) mm in diameter, usually white to purplish tinted at maturity; seeds oblong, flattened, shallowly pitted, 1.2-1.5 mm long.
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