Anthurium barclayanum Engl.

Terrestrial or epiphytic; stem to 40 cm long, 3-5 cm diam.; roots dense at the nodes, spreading-ascending, green to greenish white, fuzzy, ca. 7 cm long, 4-8 mm diam.; cataphylls subcoriaceous, 3.5-4.5 cm long, cucullate, rounded at apex, drying tan to brown, persisting & intact or as fine linear fibers. LEAVES erect-spreading; petioles 5-21 cm long, (5)7-15(20) mm diam., ± D-shaped, flattened or convex with sharp, erect margins and an acute or obtuse medial rib adaxially, obtusely angled, usually 1-4-ribbed abaxially; geniculum slightly paler and thicker than petiole, 1-7 cm long; blades subcoriaceous, narrowly oblong-oblanceolate to oblanceolate-elliptic, obtuse to acute and apiculate at apex, narrowly acute, sometimes abruptly obtuse, less often broadly rounded at base, (40)70-137 cm long, (7)11-32(48) cm wide, broadest above the middle, the margins strongly to moderately undulate; upper surface matte to semiglossy, medium green, lower surface matte to semiglossy, scarcely paler; midrib obtusely raised or flattened with a blunt medial rib at base, becoming acute toward the apex, same color as or paler than surface above, broadly and acutely raised at base, becoming convexly raised toward apex below; primary lateral veins 11-25 per side, departing midrib at 40-60° angle, straight- or arcuate- ascending to the margin, obtusely raised and nearly same color as surface above, convexly raised and paler than surface below; tertiary veins slightly raised, same color as surface above, slightly raised and darker than surface below; collective vein arising from near the apex, prominulous on both surfaces, ca. 5 mm from margin. INFLORESCENCES spreading, sometimes erect; peduncle (20)40-80 cm long, (3)5-7 mm diam., 3.5-6(9)x as long as petioles, green to green heavily tinged with maroon, terete; spathe spreading to reflexed-recurled, coriaceous to subcoriaceous, green (sometimes tinged with violet-purple) to dark violet-purple or maroon, narrowly ovate to oblong-lanceolate, (4)7-24 cm long, 0.6-4 cm wide, broadest near the base, inserted at 30-70° angle on peduncle, acuminate at apex (the acumen inrolled), acute to subcordate at base; spadix usually brownish or olive-green to greenish yellow, sometimes reddish to violet-purple, sessile, cylindroid, slightly tapered, erect, usually somewhat curved, held at 140° angle from peduncle, (5)8-18 cm long, 5-10 mm diam. midway, 3.5-5 mm diam. near apex, broadest at the base; flowers 4-lobed, 1.2-2.5 mm long, 1.6-2.5 mm wide, the sides straight to sigmoid, 7-11 flowers visible in principal spiral, 6-7 in alternate spiral; tepals matte, weakly to moderately papillate; lateral tepals 0.8-1.4 mm wide, the inner margins straight to broadly rounded, the outer margins irregularly 3-4-sided; pistils emergent or not, reddish violet to dark purple or green; stigma linear to elliptic, 0.6-1 mm long; stamens emerging in a regular or scattered pattern, the laterals preceding the alternates by ca. 1/2 length of the spadix, the 3rd stamen preceding the 4th by ca. 15 spirals, arching over and obscuring pistil; anthers purplish violet to pinkish tan, 0.6-0.8 mm long, 0.8-0.9 mm wide; thecae oblong-ellipsoid to ovoid, slightly divaricate; pollen pale yellow to creamy, fading to white, spicy-scented. INFRUCTESCENCE spreading; spadix (6)14-28 cm long, 2 cm diam., greenish when young; mature fruits unknown; berries reddish brown, obovoid, 8-9 mm long, 4-5 mm diam.; seeds 5-6 mm long, 2.5-2.7 mm diam., 1.3-1.5 mm thick, with a gelatinous appendage at each end.