Anthurium titanium Standl. & Steyerm.

Epiphytic or terrestrial; stems short, 2-4 cm diam.; leaf scars 2.5-2.8 cm wide; roots thick, tan, 5-6 mm diam.; cataphylls subcoriaceous, 4.5-12 cm long, round to weakly emarginate at apex with a conspicuous subapical apiculum ca. 2mm long, drying medium brown (B & K Yellow 4/7.5), weathering into coarse fibers. LEAVES with petioles erect-spreading, 31-90(112) cm long, 5-10(15) mm diam., D-shaped, sometimes weakly sulcate and glaucous; geniculum 1.5-4 cm long; blades moderately thick, ovate to broadly ovate or nearly round, abruptly to gradually acuminate at apex (the acumen apiculate 2-7 mm long), deeply lobed at base, 27-120 cm long, 29-80 cm wide, broadest at middle or just below, the margins sometimes markedly undulate, weakly revolute; anterior lobe 19-100 cm long, the margins broadly rounded; posterior lobes 10-40 cm long; sinus obovate to hippocrepiform, acute to rounded at apex; both surfaces semiglossy; midrib convexly raised above, more acutely raised below, narrowing and diminishing, ± flat at apex above; basal veins 1-10 pairs, the first and second free to base, those remaining coalesced 2-4(7) cm, raised above and below; posterior ribs conspicuously upturned, naked; primary lateral veins 3-5 per side, departing midrib at 45° angle, ± straight to collective vein, loop-connecting to collective vein, weakly raised above and below; interprimary veins conspicuous, flat above and below, lesser veins visible; collective vein arising from the first basal vein in smaller blades or one of the primary lateral veins in the larger blades, weakly sunken above, raised below, 7-15 mm from margin. INFLORESCENCE erect-spreading, as long as or shorter than leaves; peduncle 26-47 cm long, 7-15 mm diam., terete; spathe subcoriaceous, green, faintly to heavily tinged red-violet, broadly lanceolate, (5)9-26 cm long, 1.8-3.2 cm wide, broadest just above base, long-acuminate at apex, inrolled 1-2.5 cm, rounded at base, inserted at 25°-30° angle on peduncle, held at ca. 45° angle from peduncle; stipe 5.5-9 mm long in front, 4.5-7 mm long in back; spadix olive-green (B & K Yellow-green 5/5), sometimes weakly to heavily tinged red-violet, (6)11-24 cm long, 1-3 cm diam. at base, 5-10 mm diam. at apex; flowers rhombic to sub-4-lobed, 3.7-5 mm long, 3.8-4 mm wide, the sides ± straight to weakly sigmoid; 7-10 flowers visible in the principal spiral, 6-13 flowers visible in the alternate spiral; tepals matte, minutely papillate, lateral tepals 1.8-2.9 mm wide, the inner margin broadly rounded, thin, paler green; pistil green, emergent, raised; stigma linear, 0.7 mm long, ca. as long as pistil; stamens emerging at base, 3 or 4 stamens emerging in the first 2-3 spirals before first emerges in next spiral, held over pistil, retracting to edge of tepals before opening; filaments weakly exserted, translucent, as wide as anthers; anthers pale yellow, 0.9-1.2 mm long, 1.2-1.4 mm wide; thecae ellipsoid, scarcely divaricate; pollen cream. INFRUCTESCENCE probably with orange berries.