Anthurium pranceanum Croat

Description based on dried material only. Terrestrial; stem 1-1.5 cm diam.; roots densely and finely pubescent, ca. 2-4 mm diam.; cataphylls subcoriaceous, lanceolate, ca. 10 cm long, acute at apex, reddish brown, persisting semi-intact. LEAVES with petioles 35-65 cm long, 4-8 mm diam., subterete, sulcate adaxially, rounded abaxially; geniculum slightly darker than petiole, ca. 1 cm long, appearing remote from base of blade by 4-20 cm; blades moderately coriaceous, ovate-elliptic to ovate, shortly acuminate at apex, broadly rounded then abruptly attenuate at base, 40-70 cm long, 17-26 cm wide, broadest at or below the middle, lower surface dark glandular-punctate; both surfaces green to yellowish green; midrib convexly raised above, acutely raised below; primary lateral veins 6-9 per side, departing midrib at 50-60° angle, ± straight, becoming arcuate near the margin, apparently convexly raised above and below; tertiary veins weakly raised; collective vein arising from about the middle of the blade, apparently sunken above, raised below, less prominent than primary lateral veins, 7-24 mm from margin. INFLORESCENCES erect, shorter than leaves; peduncle 24-40 cm long; ca. 2-5 mm diam., about half as long as petiole, terete; spathe recurled, membranous, violet, lanceolate, ca. 4 cm long, ca. 1.2 cm wide, broadest near the base, narrowly acute at base; stipe 15-28 mm long in front, 1-10 mm long in back; spadix violet, weakly tapered, ca. 7.7 cm long, 5-6 mm diam. near base, ca. 3 mm diam. near apex; flowers rhombic, ca. 2 mm in both directions, the sides ± straight to smoothly sigmoid; 4-6 flowers visible in either spiral; tepals smooth when dried; lateral tepals 1 mm wide, the inner margins straight, the outer margins 2-sided. INFRUCTESCENCE not seen.