Anthurium samamaense Croat & Cornejo

Terrestrial or hemiepiphytic; internodes 1-4 cm long; 1.5 cm diam. (drying 6-9 mm diam.), dark green, matte, soon grayish; cataphylls 12-13.5 cm long, drying reddish brown, deciduous; petioles terete, (32-)51-58 cm long, 1.0-1.3 times longer than blade, semiglossy, dark green, drying dark brown and semiglossy, obtusely ribbed; blades ovate-sagittate, (39-)46.5-55.5 cm long, (21-)28.6-32.7 cm wide, 1.7-1.8 times longer than broad, abruptly acuminate at apex (acumen 1.5-3 cm long), deeply sagittate-lobed at base, subcoriaceous, semiglossy to glossy, bicolorous, drying dark blackish brown and weakly glossy above, slightly paler, semi-glossy and dark yellowish brown below; major veins narrowly rounded and concolorous above, narrowly raised and paler below; anterior lobe 28-40.7 long, broadly rounded along margin; posterior lobes (11-)14-18 cm long, 7.5-13 cm wide; basal veins 5-7 per side, 1st and often 2nd pair free to the base, 4th & higher order veins coalesced to 3.7 cm; posterior rib naked 4-4.7 em; sinus spatulate to narrowly hippocrepiform, 11-14.5 em deep, 4.0-6.4 cm wide; midrib drying darker than surface, narrowly raised and bluntly acute above, bluntly angular below; primary lateral veins 3-4 pair, arising at 40-50° angle, drying darker than surface below; minor veins drying minutely wrinkled on both surfaces; collective veins arising from the 1st or 2nd pair of basal veins. INFLORESCENCE erect; peduncle 16.5-19.5 cm long, pale green, drying dark brown, 3 mm wide; spathe whitish, linear-lanceolate, reflexed-spreading, 11-13 cm long, 1.1-1.5 cm wide, abruptly acuminate, drying drying dark blackish brown; spadix 11.5-25 cm long, 6 mm diam., narrowly long-tapered, dark violet-purple, matte; flowers 12-13 visible per spiral, 1.6-1.8 mm long, 1.2-1.3 mm wide on drying; lateral tepals .8-.9 mm wide, minutely papillate and matte, outer margins 2-3-sided, inner margin broadly rounded; stamens held at the level of the tepals, the lateral stamens emerging throughout the full length of the spadix before the alternate pair begins to emerge.