Araceae
Anthurium longiusculum Croat
SUMMARY
Terrestrial plant, specimens blackening when dried; caudex slightly elongated; internodes short, 1.5-2.5 cm diam.; cataphylls membranaceous, 6-12 cm long, turning dark red-brown, persisting more or less intact as scales surrounding the caudex. LEAVES subcoriaceous; petioles terete, semiglossy, medium to dark green, 62-85 cm long, ca. 5 mm diam.; geniculum obtusely sulcate, sometimes remote and seemingly disconnected from the leaf tissue; blades subcoriaceous, lanceolate-elliptic, 36-46 cm long, 7-14 cm wide, averaging 41 x 10.5 cm, 2.8-5.1 times longer than wide, .48-.61 times as long as petioles, obtuse or acute at base, tapering and acuminate at apex, semiglossy, moderately bicolorous, drying yellow-brown to gray-brown and weakly glossy above, grayish yellow-brown to yellow-brown and semiglossy below; midrib convex and slightly paler above, narrowly rounded and slightly paler below; primary lateral veins 17-21 pairs, quilted-sunken and concolorous above, weakly pleated-raised and darker below, weakly loop-connected into the connective veins; tertiary veins obscure; collective veins arising from 1st-2nd pair of primary lateral veins, generally more raised below than the primary lateral veins, running 3-15 mm from margin. INFLORESCENCES erect to spreading; peduncle 30-67 cm long, 2-3 mm diam.; spathe green, 4.8-6.0 cm long, 4-5 mm wide (up to 1.5 cm wide when flattened), 5-12 times shorter than peduncles, membranaceous, deflexed, linear-lanceolate with two acute 4-mm extension on each side of the midrib at the apex, obtuse at base and clasping the base of the stipe, twisted-rolled with margins tightly rolled under, green, tinged purple and matte inside, semiglossy outside; spadix stipitate, dark green, semi-glossy, 4-5 cm long, 4-5 mm diam., 7.5 times longer than wide; flowers 4-5 visible per spiral, 1.5-1.9 mm long, 1.7-2 wide; lateral tepals .9-1.2 mm wide, minutely granular, outer margin 2-3-sided, inner margin broadly rounded; stamens .6 mm long, .6 mm wide; anthers oblong, not divaricate. INFRUCTESCENCE erect, to 14.5 cm long, 1.2 cm wide, berries rounded, purplish, drying 5-6 mm long, 4-5 diam.