A small or large, epiphytic vine, the internodes elongate, 5-12 cm. long, 1-1.5 cm. thick; cataphylls elongate-lanceolate, caducous; petioles terete, commonly 20-30 cm. long and 1-1.5 cm. thick at the base; blades thin when dried, 3-parted, the segments oblong-lanceolate, acuminate or short-cuspidate, subequal, about 15-25 cm. long and 4-7 cm. wide, the lateral ones conspicuously oblique, all 3 segments sessile, almost or quite distinct; peduncles solitary, 3-7 cm. long, rather stout; spathe whitish, toward the apex often yellowish, the tube oblong, 3-4 cm. long, the blade ovate or ovate-oblong, short-acuminate, about 5-6 cm. long and 3 cm. wide; spadix borne on a stipe 2-4 cm. long, the pistillate portion 3-4 cm. long, 8-10 mm. thick, the staminate 3.5-5 cm. long, slightly attenuate upward; pistils cylindric, 1.5-1.8 mm. long, 7-to 11-celled, the cells 1-or 2-ovulate; berries red.
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