Anthurium hacumense Engl.

Rosulate, epiphyte; stem short; roots few, directed upward; cataphylls coriaceous, ca. 9 cm long, drying dark brown, weathering to coarse linear fibers. LEAVES ± erect; petioles sulcate, rounded to weakly angular abaxially, 2-12 cm long, 1-1.5 cm diam.; geniculum 2-2.5 cm long; blades narrowly to broadly oblanceolate, coriaceous, 25-81 cm long, 7.5-29 cm wide, acuminate al apex, attenuate al base; upper surface glossy, lower surface semiglossy, conspicuously punctate; midrib broad and flat at base above, soon becoming convexly raised, narrowing and sunken toward apex, acutely raised below; primary lateral veins 7-15 per side, departing midrib at 45° angle, sunken above, raised below, straight to collective vein; collective vein arising from base, sunken above, raised below, 1.5-2 cm from margin. INFLORESCENCE erect-spreading; peduncle 10-27 cm long, subterete; spathe subcoriaceous, yellow-green tinged with violet-purple, oblong-elliptic, 5.5-11 cm long, 2.2-3.5 cm wide, withering and early deciduous; stipe becoming elongate to 29 cm al anthesis; spadix purple-violet (B & K Red-purple 4/2.5), 10-20 cm long, 1-2.5 cm diam. at base, 7-12 mm diam. at apex; flowers sub-rhombic to 4-lobed, 2.4-3.6 mm long, 2-3.5 mm wide, the sides ± straight to jaggedly sigmoid; 9-20 flowers visible in the principal spiral, the alternate spiral irregular with 9-12 flowers visible; tepals glossy, with numerous tiny droplets; pistils flat to weakly emergent, pinkish to dark violet-purple, butterfly-shaped; the stigma oblong-elliptic, ca. 0.4 mm long, having minute droplets for several days before first stamens emerge; stamens emerging in a moderately prompt sequence from middle of spadix to both ends, the lateral stamens preceding alternates by several spirals, the stamens complete at apex before basal flowers complete, emitting a strong, sweet scent at anthesis; anthers dark violet-purple; exserted on fleshy, pale violet-purple filaments, soon retracting to level of tepals, held in a cluster covering pistils; thecae oblong, slightly divaricate; pollen white or cream turning lavender. INFRUCTESCENCE with spadix to 23 cm long; berries bright red (B & K Red 6/5), narrowly obovoid, acute to mammilliform at apex, ca. 1 cm long, 4-5 mm wide; seeds 2, white, weakly flattened, 2.5-2.7 mm long, 1.7-2 mm wide, 1-1.5 mm thick.