Plants large and coarse, epiphytic, the caudex apparently short, very thick, with short internodes; petioles half to three-fourths as long as the blades, stout, terete, 40-60 cm. long, 15-18 mm. thick near the base, geniculate 3-3.5 cm. below the apex; blades coriaceous when dried, oblong, 60-80 cm. long, 15-20 cm. wide, somewhat narrowed near the apex and cuspidate-acuminate, truncate or shallowly cordate at the base, with broad, rounded basal lobes, the costa stout and prominent beneath, the primary costal nerves 12-16 on each side, stout and prominent, irregularly anastomosing near the margin but not forming a distinct collective nerve; peduncles rather stout, terete, about 30 cm. long and 8-10 mm. thick; spathe lanceolate, long-acuminate, slightly decurrent upon the peduncle, 10 cm. long and 3 cm. wide; spadix borne on a stipe almost 2 cm. long, narrow-cylindric, slightly attenuate upward, obtuse, 15 cm. long, 1.5 cm. thick at the base; sepals 1.5-1.8 mm. long; pistils ovoid.
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