Anthurium spathiphyllum N.E.Br.

Epiphytic; stem ca. 10 cm long, 2 cm diam.; roots moderately numerous, descending, greenish gray, prominently pubescent, gradually tapered and elongate, 3-5 mm diam.; cataphylls subcoriaceous, lanceolate, 6-8 cm long, cuspidate at apex with subapical apiculum ca. 15 mm long, green, drying pale tan (B & K yellow 9/7.5), persisting as linear fibers. LEAVES spreading; petioles 6-26 cm long, 5-8 mm diam., triangular, sometimes 3-5-ribbed or flattened with the margins prominently raised adaxially, sharply 1-2-ribbed abaxially; geniculum conspicuously thicker and slightly paler than petiole, 0.7-1 cm long; blades subcoriaceous, linear to narrowly oblong-elliptic or narrowly oblong-oblanceolate, more than 5 x longer than wide, acuminate at apex (the acumen apiculate), narrowly acute at base, 46-80 cm long, 5.5-12.5 cm wide, broadest at or above the middle, the margins broadly undulate; upper surface matte to glossy, dark to medium green, lower surface matte to weakly glossy, paler below; midrib flat at base, becoming angular-raised toward the apex above, prominently and sharply raised and slightly paler than surface below; primary lateral veins 20-30 per side, departing midrib at 40-45º angle, straight to the collective vein, deeply sunken above, sharply raised below; interprimary veins almost as conspicuous as primary lateral veins, sunken above, raised below; tertiary veins obscure above, raised and slightly darker than surface below; collective vein arising from near the base, sunken above, sharply raised below, equally as prominent as primary lateral veins, 3-10 mm from margin. INFLORESCENCES spreading, shorter than leaves; peduncle 33-48 cm long, 4- 15 mm diam., 2 x as long as petiole, green, prominently 2-winged-angled on one side, rounded to sharply acute on the other (or triangular or few-angled near base); spathe erect, hooded over the spadix, subcoriaceous, green, lanceolate to broadly lanceolate, 6.5-8 cm long, 1.7-3 cm wide, broadest near the base, about twice as long as spadix, inserted at 50' angle on peduncle, acuminate at apex (the acumen apiculate, 4 mm long), obtuse to rounded at base; spadix pale yellow to creamy white, cylindroid to clavate, short and stubby, erect, (1.7)2-4 cm long, 6- 1 1 mm diam.; flowers 1.8- 2.2 mm long, 1-1.2 mm wide, the sides smoothly to jaggedly sigmoid; 7-12 flowers visible in principal spiral, 1 1-1 5 in alternate spiral; tepals matte, densely and minutely papillate; lateral tepals 0.7- 0.8 mm wide, the inner margins straight to convex, the outer margins irregularly 2-4-sided; pistils somewhat emergent, matte, pale yellow; stigma linear, 0.1-0.2 mm long; stamens emerging in a scattered pattern throughout, lateral stamens almost to apex before alternates emerge, inclined over and obscuring pistil; filaments fleshy; thecae oblong, not divaricate; pollen pale yellow fading to creamy white. INFRUCTESCENCES; Berries translucent white.