Anthurium riofrioi Sodiro

Stem short-scandent, 6-7 cm diam.; internodes short; cataphylls elongate, lanceolate, 2.5-3 dm [25 - 30 cm] long, purplish, soon weathered into rough, rusty fibers. LEAVES: Petiole elongate, robust, deeply multistriate, mildly unisulcate adaxially, more than 1 m long; geniculum 1.5-2 cm long; blades parchment-like, shiny, large, 1/3 longer than wide, about 1 m long, 7-8 dm [70 - 80 cm] wide, deeply cordate-ovate, contracted into an acute apex in a not very much concave line from the upper third; posterior lobes about 1/4 as long as anterior, retrorse, very obtuse, converging along the way at the apex; sinus very broad, subreniform; primary lateral veins of the posterior lobes 9-10, coalesced into posterior ribs largely naked 1.2-1.5 dm along the sinus, the outermost and middle basal veins merging in the margin, the innermost 3-5, together with interlobar and 15-17 primary lateral veins of the anterior lobe, spreading at about a 45 degree angle, confluent into a collective vein close to the margin, often interrupted. INFLORESCENCE: Peduncle 1/2 as long as petiole, multistriate, robust; spathe subcoriaceous, persistent, erect, broadly linear-lanceolate, long-narrowed upward, purplish, many-veined below, equalling 2/3-3/4 of the spadix, dm long, 5 cm wide; spadix about 4 dm [40 cm] long, 1-1.2 cm diam., attenuate upward, purplish, stipitate 1-1.2 cm; tepals twice as long as wide, cuneate. INFRUCTESCENCE: Berry oblong, obtuse.