Plants rather large and coarse, epiphytic, the caudex short and thick, with very short internodes, the numerous cataphylls weathering into coarse, stramineous fibers; petioles subterete, almost equaling the blades, 20-30 cm. long, stout, geniculate about 8 mm. below the apex, the node thick; blades-narrowly elliptic-oblong, mostly 29-35 cm. long and 7-10 cm. wide, obtuse at the apex and abruptly cuspidate-acuminate, broadly cuneate or subobtuse at the base, sub-coriaceous when dried, epunctate, the costa slender, prominent on both surfaces, the primary lateral nerves numerous, not or scarcely stouter than the secondary ones, ascending at an angle of about 45 degrees, united 5-9 mm. from the margin to form a distinct collective nerve; peduncles stout, 45 cm. long, usually almost twice as long as the petioles; spathe purplish green, oblong-lanceolate, 6.5 cm. long, 1 cm. wide, acuminate; spadix purplish, slender-cylindric, obtuse, sometimes slightly attenuate upward, 12-25 cm. long, 7 mm. thick near the base.
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