Plants epiphytic or terrestrial on rocky banks, the caudex often assurgent and 30 cm. long or more, as much as 2 cm. thick, with short internodes; cataphylls 10-16 cm. long, linear-oblong, persistent and rather coriaceous, brown when' dried; petioles slender or stout, 40-60 cm. long, geniculate 2-3 cm. be-low the apex; blades subcoriaceous when dried, broadly ovate-cordate, mostly 25-35 cm. long and 20-2 5 cm. wide, shortly cuspidate-acuminate, the posterior lobes broadly rounded, directed downward or slightly inward, the sinus open but usual-ly narrow, the primary costal nerves 3-4 on each side or rarely more, rather stout and prominent beneath, united to form a distinct collective nerve rather remote from the margin; peduncles 15-30 cm. long; spathes lanceolate, commonly 8-10 cm. long and 2-3 cm. wide, long-acumi-nate or caudate-acuminate, whitish or greenish; spadix sessile or short-stipitate, cylindric, obtuse, dark red, 6-12 cm. long, almost 1 cm. thick at the base or in fruit 1.5 cm.; fruits red.
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