Araceae
Anthurium longistipitatum Croat
SUMMARY
Epiphyte; stems less than 20 cm long, 1.5-2 cm diam.; roots few, greenish to brown, descending; leaf scars ca. 1 cm diam.; cataphylls moderately thick, 3.5-6 cm long, drying reddish brown, soon weathering to coarse brown fibers, persisting around base of leaves and around stem. LEAVES erect-spreading; petioles 4.5-36 cm long, 2.5-3.5 mm diam., terete, green with sparse, inconspicuous, purplish glands; geniculum 1-1.5 cm long, weakly sulcate; blades moderately thick, oblong-lanceolate to strap-shaped, gradually acuminate at apex, obtuse to rounded at base, (9-)13-46 cm long, (1.5-)3-7 cm wide, broadest at about the middle (rarely below the middle). the margins straight, revolute; upper surface matte, obscurely dark glandular-punctate, weakly papillate; lower surface semiglossy, conspicuously dark glandular-punctate; midrib acutely raised above nearly to apex, obscurely raised near base below, flat toward apex; primary lateral veins (5-)10-20 per side, departing midrib at ca. 45° angle, scarcely visible above, weakly sunken below, drying prominulous above and below; lesser veins inconspicuous, drying prominulous; collective veins arising from the base, straight or weakly loop-connected, 3-6 mm from margin. INFLORESCENCE arching to pendent, shorter than leaves; peduncle erect to arching, terete, faintly tinged red-violet, 12-34 cm long; spathe thin, green, sometimes violet purple or only the margins tinged violet purple, lanceolate, 2-10 cm long, 4-10 mm wide, broadest near the base, abruptly acuminate at apex, usually withering promptly, inserted at a 10° angle on peduncle; stipe 1-4 cm long (rarely to 6 cm), green; spadix reddish brown, becoming dark violet purple, 4.5-20 cm long, 4 mm diam. midway, slightly tapered to apex; flowers weakly 4-lobed, 2.5-3 mm in both directions, the sides more or less straight parallel to spirals, sigmoid perpendicular to spirals, 3-4 flowers visible in the principal spiral, 6-8 flowers visible in the alternate spiral; tepals glossy, lateral tepals 1.4-1.8 mm wide, the inner margin broadly rounded; pistils weakly raised, reddish purple; stigma linear, ca. 0.3 mm long; stamens emerging rapidly, beginning near the base, the laterals emerging to the middle or just above before the first alternate emerges, the third stamen preceding the fourth by only ca. 2 spirals, persisting after anthesis; anthers white, held at sides of pistil just above tepals, ca. 0.3 mm long, 0.6 mm wide; thecae more or less rounded, slightly divaricate; pollen yellow, fading to white. INFRUCTESCENCE pendent; berries subglobose, red, ca. 5 mm diam.; mesocarp gelatinous; seeds 1, tan, weakly flattened, 2.5-2.7 mm long, 1.5-2 mm wide, 0.7-1 mm thick.