Araceae
Anthurium jefense Croat
SUMMARY
Epiphyte; stems more or less densely rooted, less than 10 cm long, 8-12 mm diam.; leaf scars hidden by cataphylls and roots; roots numerous, 2-3 mm diam., spreading or descending; cataphylls 2-3.5 cm long, drying reddish brown, promptly weathering to fine, persistent fibers, sometimes the apex more or less intact. LEAVES erect; petiole 4-15 cm long, 2-3 mm diam., sulcate or more or less flattened adaxially, the margins erect, rounded abaxially; geniculum 7-10 mm long; blades subcoriaceous, usually oblong-elliptic to oblanceolate-elliptic, rarely oblong-lanceolate, gradually to abruptly acuminate at apex (the acumen flattened and apiculate), acute at base, 8-17 cm long, 2.4-4.4 cm wide, broadest usually near middle; both surfaces semiglossy, eglandular above, densely and conspicuously glandular-punctate below; midrib prominently raised on both surfaces (dry); primary lateral veins 7-11 per side, departing midrib at 35-45° angle, drying prominulous or weakly etched above, prominulous below; interprimary veins only slightly less prominent than primary lateral veins on drying; collective vein arising from the base, 2-4 mm from margin, sunken above, raised below (dry). INFLORESCENCE erect; peduncle 7.5-15 cm long, 2-3 mm diam., terete, equalling or to twice as long as petioles; spathe moderately thin, green heavily tinged red or purple, lanceolate, 2.5-7 cm long, 4-8 mm wide, broadest just above the base, usually acute to obtuse and apiculate, rarely acuminate at apex, acute to obtuse or rarely rounded at base, inserted at ca. 45° angle on peduncle; stipe usually absent, sometimes to 3 mm long; spadix red to purple, scarcely tapered toward apex, 7-12 cm long, 3-4 mm diam. at base, 2-3 mm diam. near apex; flowers rhombic, 3.5-4 mm long 2.5-3 mm wide, 2-3 flowers visible in the principal spiral, 5-6 flowers visible in the alternate spiral; tepals semiglossy, lateral tepals 2.3-2.6 mm wide, the inner margin straight to broadly rounded; pistils not emergent, violet purple; stigmas broadly elliptic, ca. 0.3 mm long, 0.2 mm wide; stamens retracting beneath tepals after anthesis. INFRUCTESCENCE with berries white, subglobose, 4-5 mm diam., rounded at apex; seeds 4-6, narrowly ovoid-ellipsoid, pale brown, 1.3-1.5 mm long, 0.8-1 mm wide, often oblique at apex, rounded at base, with a sticky, transparent, gelatinous covering at both ends.