Anthurium crassinervium (Jacq.) Schott

Epiphytic, epilithic or terrestrial, sometimes colonial; stem short, 2.5-4 cm diam.; roots dense, ascending, smooth; cataphylls subcoriaceous, 7- 13 cm long, acute at apex, drying medium brown (B & K yellow 4/7.5), persisting ± intact, weathering into reticulum of fibers. LEAVES erect to spreading; petioles 3-33.5 cm long, 4-11 mm diam., D-shaped to quadrangular or thicker than broad, broadly and shallowly sulcate to V-sulcate, rarely narrowly sulcate adaxially, the margins acute, rarely inclined inward, flattened to rounded or 3-5-ribbed abaxially; geniculum somewhat thicker and paler than petiole, 0.8-2 cm long; blades moderately coriaceous, oblanceolate, gradually acuminate or rarely rounded at apex, acute to somewhat obtuse at base, 25-142 cm long, 11-52 cm wide, broadest usually above the middle, the margins undulate; both surfaces matte to semiglossy, slightly paler below, often pale-pustulate and/or with pale or dark punctations; midrib flat with a conspicuous medial rib near the base above, becoming acutely raised near the middle, sharply raised below, sometimes 3-ribbed at base; primary lateral veins 6-14 per side, departing midrib at 40-70°angle, ± straight or arcuate to the margin, prominently raised near the midrib above, then sunken and merging with margin, raised below, drying raised and paler on both surfaces; interprimary veins not apparent; tertiary veins flat and slightly visible above, visible and darker than surface below; collective vein arising in the upper ? or in the upper ¼ of the blade, prominulous when dried. INFLORESCENCES erect to spreading; peduncle (13)20-98 cm long, 5-12 mm diam., 1-3(5) x as long as petiole, terete, sometimes ribbed near the base of spathe; spathe spreading to reflexed, moderately thin, green, sometimes tinged with purple, lanceolate, 8-12.5 cm long, 1.5-2 cm wide, broadest near the base, often decurrent at base; spadix dark purple or violet to green or green tinged with purple, tapered, sessile or stipitate to 12 mm, (6)12-33 cm long, 7-10 mm diam. near base, 4-7 mm diam. near apex; flowers rhombic to 4-lobed, 2.4-3.1 mm long, 1.6-2.8 mm wide, the sides jaggedly sigmoid; 7-10 flowers visible in principal spiral, 5-10 in alternate spiral; tepals matte; lateral tepals 1.2-1.5 mm wide, the inner margins rounded, tinged with violet-purple; pistils emergent, violet-purple; stigma linear, 0.5 mm long; stamens emerging from the base of the spadix, laterals emerging to midway followed by alternates in rapid succession, arranged in a circle around the pistil just above the tepals; anthers pale orange (B & K yellow-red 8/7.5) 0.7 mm long, 1 mm wide; thecae ovoid, slightly divaricate; pollen pale orange, white when dried. INFRUCTESCENCE pendent; berries red, ovoid, basally attached to spadix by 4 tepalar fibers, 7.6-8.2 mm long, 3-3.5 mm diam. on rehydration; pericarp studded with raphide cells; seeds 1- 2 per berry, pale yellowish, with raphide cells, ellipsoid, 3.6-4.4 mm long, 1.6-2.2 mm diam., 0.8-1.6 mm thick, with a mucilaginous apical appendage.