Anthurium whitmorei Croat & Lingán

Description based on dried material; epiphytic; roots 1-2 mm diam., grayish white to brownish; internodes 0.3-2.1 cm long, grayish to brown, 0.2-0.8 cm diam.; cataphylls 2-6.2 cm long, un-ribbed, lanceolate, subcoriaceous, grayish to dark brown, weathering in to brown fibers, then deciduous. LEAVES erect to spreading; petioles 2.7-12.7 cm long, 0.2-0.5 mm diam., D-shaped with erect margins above, frequently bluntly ribbed below, greenish; sheath 1.9-4.2 cm long; geniculum 0.7-2.3 cm long; blades subcoriaceous, 14.2-34.9 cm long, 3.1-10 (12.6) cm wide, oblanceolate to oblong-oblanceolate, rarely obovate, abruptly acuminate at apex, acute to obtuse at base, semiglossy above, glossy below; margins slightly concave below the middle; midrib convex above, prominently raised below; primary lateral veins (7) 10-13 per side, slightly curved, ascending, departing midrib at 50-60°; collective veins arising from the base, 0.4-1.7 cm from the margins. INFLORESCENCE erect to spreading; peduncle markedly 4-ribbed, 13.2-31 cm long, 0.2-0.5 cm diam., green, 2.4-4.8 times longer than the petiole; spathe membranaceous to weakly subcoriaceous, green, persistent, erect, 4.2-13.3 cm long, 0.6-1.2 cm wide, oblong-lanceolate to oblong-elliptic, acuminate at apex, acute at base, the margins joining at 25-40°; spadix yellowish green to olive-green, 4.5-14.8 cm long, 0.2-0.6 cm diam.; stipe greenish, 0.9-4.1 cm long in front, 0.3-3.1 cm long in back; flowers rhombic 1.5-1.7 mm long, 1.7-2 mm wide; 3-4 flowers visible on the principal spiral, 3-7 flowers visible on the alternate spiral; tepals grayish to brownish, rugulose on drying, outer margins 2-3 sided, inner margins convex; stigmas elliptic; stamens contiguous at anthesis, closely clustered over stigma; anthers 0.35 mm long, 0.5 mm wide; thecae ovoid, markedly divaricated, drying yellow-brown. INFRUCTESCENCE spreading; berries green, obovate to spherical, 3 mm long, 2 mm wide.