Hemiepiphytic plant; internodes to 2 cm or more long, to 1.5 cm diam., drying deeply folded, light reddish brown, the surface smooth or sometimes closely transverse fissured; cataphylls not seen. LEAVES: Petioles 32- 32.5 cm × 4-5 mm, drying somewhat flattened throughout, obtusely sulcate toward the base and toward the apex, medium reddish brown, irregularly and minutely sulcate-ribbed throughout, matte; blades oblong-oblanceolate, 37.5-46.5 × 11.8-16.5 cm, 3.1- 3.8 times longer than wide, abruptly acuminate at apex, narrowly rounded at base, drying gray above, faintly reddish brown below; midrib drying obtusely sunken to weakly raised and +/-concolorous above; primary lateral veins 4 per side, drying not at all apparent above, weakly visible, but scarcely raised below, arising at an acute angle then spreading at 55-60° angle; minor veins drying quilted-sunken and concolorous above, close and moderately fine, distinctly visible, much less apparent below, scarcely raised, concolorous. INFLORESCENCES 2 per axil; peduncle 3.5-4.5 cm long, drying pale reddish brown, finely ridged, 2.5 mm diam.; spathe 4.4-4.6 cm × 4-5 mm, finely ridged externally; spadix 3.8 cm long; pistillate portion 1.7 cm × 1.1 mm throughout; staminate portion 2.1 cm long, the sterile staminate flower in a single whorl; pistils 4- 6-sided or subcircular at apex, 4 mm diam. except for those at the apex and base to 6 mm diam., the outer margin pale brown, the center dark brown; locules 3, one basal ovule per locule; ovules 0.2 mm long, densely papillate, white.