Type: Guatemala, Scherzer s. n. (B, holotype (2 sheets); BP, isotype).
Epiphytic or terrestrial; stems very short, roots numerous, thin; cataphylls thick, to 1.5 cm long, caudate at apex, drying brown, persisting as fibers. LEAVES spreading; petioles terete, 4-20 cm long, 1-3 mm diam.; gcniculum 4-7 mm long; blades moderately thick, linear to elliptic or lanceolate, 5-26 cm long, 1.5-6.5 cm wide, narrowly acuminate at apex, obtuse to cuneate at base; upper surface semiglossy, the lower surface matte, both surfaces densely punctate; the midrib acutely raised above, sunken at apex; prominulous below; primary lateral veins 8-11 per side, departing midrib at 45° angle, nearly obscure above and below, loop-connecting to collective vein, lesser veins obscure; collective vein arising from near the base or one of the lowermost primary lateral veins, 1-3 mm from the margin. INFLORESCENCE erect, equalling or longer than leaves; the peduncle 14-52 cm long, ca. 2 mm diam.; spathe moderately thick, bright red-orange (B & K Red 7/2.5), elliptic to ovate, 3.7-12 cm long, 2.4-6 cm wide, abruptly short-acuminate at apex, cordate at base (the lobes sometimes overlapping); spadix pale orange to red, 2-8 cm long, ca. 4 mm diam. midway, tapered at apex and usually coiled; flowers square, 2 mm in both directions, the sides straight to ± sigmoid, 2-3 flowers visible in the principal spiral, 5-6 flowers visible in the alternate spiral; tepals glossy, sparsely and minutely papillate, lateral lepals ca. 1.3 mm long; pistil weakly emergent, somewhat translucent; stigma linear, 0.4-0.6 mm long; stamens emerging from base, the first lateral preceding second by 2-3 spirals, the laterals emerged well above midway before alternates emerge, exserted on flattened, short filaments, ca. 3 mm long, 0.5 mm wide; anthers white, held at edge of tepals, ca. 0.3 mm long, 0.5-0.7 mm wide; thecae cllipsoid, slightly divaricate; pollen white. INFRUCTESCENCE with orange to red berries.