Anthurium anorianum (Araceae)
Epiphytic; stem short, 2-4 cm diam.; roots numerous, very dense, spreading, green to whitish, grayish brown on drying, moderately thick, 6-24 cm long, 3-5 mrn diam. when fresh, drying 1-2 mm diam.; cataphylls subcoriaceous, lanceolate, 2-3 cm long, acute at apex, green, drying brown (B & K yellow-red 4/10), persisting semi-intact. LEAVES spreading; petioles 4-9 cm long, 9-1 7 mm diam., obtusely D-shaped, broadly convex adaxially with the margins shortly and sharply raised, rounded to 3-5-ribbed abaxially, surface pale-speckled, reddish when young; geniculum thicker and slightly paler than petiole, 1 -1.5 cm long, prominently and transversely fissured with age; blades subcoriaceous, broadly oblanceolate, acute to acuminate at apex (the acumen apiculate), attenuate at base, 36-100 cm long, (12)20-60 cm wide, broadest above the middle, the margins broadly and shallowly undulate; both surfaces glossy to semiglossy, medium green above, slightly paler below, drying brown to greenish brown; midrib flat to obtusely raised at base, becoming acutely raised toward the apex and slightly paler than surface above, obtusely raised below and slightly paler than surface, pale short-lineate; primary lateral veins 12-16 per side, departing midrib at 40-55' angle, straight or weakly ascending to the margin, sunken above, prominently convex and slightly paler than surface below; tertiary veins obscure above, prominulous and slightly darker than surface below, drying raised on both surfaces; collective vein arising in upper third or fourth of the blade, sunken above, raised below, less prominent than primary lateral veins, raised above and below on drying, 4-20 mm from margin. INFLORESCENCES probably erect-spreading; peduncle 69- 105 cm long, 5- 15 mm diam. When dried, 6-9x as long as petioles, green, drying brown to pinkish brown, terete; spathe spreading, slightly recurled, subcoriaceous, green, tinged with purple near the apex, lanceolate, 7.5-9(35) cm long, l-1.3 cm wide, broadest near the base, acuminate at apex (the acumen inrolled), acute to almost decurrent at base; stipe 1.5-1.8 mm long in front; spadix purple to dark purple, long tapered, 14-23 cm long, 5-6 mm diam. near base, 3-4 mm diam. near apex; flowers ± rhombic, 3-3.3 mm long, 2.8-3 mm wide, the sides straight, 4-5 flowers visible in principal spiral, 7-8 in alternate spiral; tepals smooth, pale-punctate, lateral tepals 2.1-2.4 mm wide, the inner margins straight to broadly convex, the outer margins 2-sided; pistils green; stigma ellipsoid, 0.4-0.6 mm long; anthers 0.3-0.4 mm long, 0.4-0.5 mm wide; thecae oblong, not divaricate. INFRUCTESCENCE with the spathe persisting withered; spadix (1 2)18-41(100) cm long, 1.4-1.6 cm diam., bearing berries in the basal portion only; berries dark red, probably acute at apex, drying 4.8-5.5 mm long, 3-3.2 mm diam.
Endemic to Colombia in the Department of Antioquia. All collections to date have been made from the northern drainage of the Rio Canoa.
Tropical moist and tropical wet forest life zones. All collections to date have been made from the northern drainage of the Rio Canoa.