Anthurium alatipedunculatum Croat & R.A.Baker

Epiphyte; stems 1-1.5 cm diam.; roots few, descending, 2-3 mm diam.; cataphylls moderately thin, 2-3 cm long, acuminate at apex, drying brown, weathering into fibers, subpersistent. LEAVES erect; petioles 4-26 cm long, 5-6 mm wide, triangular, sulcate, drying with a narrow, almost membranous wing; gcniculum 0.5-1.2 cm long; blades lanceolate-elliptic, acuminate at apex, obtuse to rounded at base, 15-23.5 cm long, 6-10 cm wide, broadest below the middle, obscurely and sparsely punctate above, densely punctate below, the punclalions reddish-brown, the margin drying conspicuously undulate; lower surface paler than upper; primary lateral veins 10-20 per side, departing midrib at 5 5° angle, almost straight to collective vein; interprimary veins numerous; collective vein arising from the base, 3-8 mm from margin. INFLORESCENCE shorter than leaves; peduncle 12-19 cm long, ca. 3 mm wide, winged, 0.5 to 5 times longer than petioles; spathe green suffused with purple-red at margin, lanceolate-linear, 3-4.5 cm long, 6-8 mm wide, broadest at base, short-acuminate at apex (the acumen apiculate), inserted at ca. 30° angle on peduncle; spadix sessile, green, 10-12 cm long, 3-5 mm diam. at base, 2-3 mm diam. at apex; flowers rhombic, 2,3-2.8 mm long (dry), 1.8-2.3 mm wide (dry), the sides ± straight to weakly sigmoid; 4-5 flowers visible in the principal spiral, 3-5 flowers visible in the alternate spiral; tepals drying matte, the lateral tepals ca. 2 mm wide (dry), the inner margins broadly rounded; stamens emerging just above the tepals, the anthers ca. 0.4 mm long, 0.9 mm wide (dry); thecae strongly divaricate. INFRUCTESCENCE not seen.