Anthurium bucayanum Croat

Epiphytic or terrestrial; stem to ca. 60 cm long, 1.5-4 cm diam.; roots dense, ascending, pale greenish, conspicuously pubescent, short to moderately elongate, bluntly pointed at apex, 2-5 mm diam.; cataphylls membranous, lanceolate, unribbed, 2.5-12 cm long, acute at apex with a subapical apiculum, green, drying light-brown with dense raphides, persisting semi-intact, eventually deciduous. LEAVES erect to spreading; petioles (5.5)9-14 cm long, 4-10 mm diam., acutely D-shaped to C-shaped, broadly convex adaxially with the margins sharply raised and slightly turned inward, 5-10-ribbed abaxially, the surface somewhat pale-speckled; geniculum slightly thicker and paler than petiole, fissured transversely with age, 1-2 cm long; blades subcoriaceous (very thin on drying), broadly oblanceolate-elliptic to oblanceolate, acute to shortly acuminate at apex (the acumen weakly inrolled), narrowly acute to acute to narrowly rounded at base, (38)50-112 cm long, (10)15-26.5 cm wide, broadest at or above the middle, the margins broadly and shallowly undulate; upper surface glossy to semiglossy, medium green (B & K yellow-green 4/10), lower surface semiglossy; both surfaces drying semiglossy to weakly glossy, dark green to yellow-green; midrib broadly convex to obtusely flat-raised and obscurely sulcate above, higher than broad and bluntly 3-5-ribbed at base, becoming prominently convexly raised toward the apex below; primary lateral veins (13)18-26 per side, departing midrib at 55-75° angle, straight (sometimes weakly arcuate) to the collective vein, prominently convex above and below; tertiary veins weakly visible when fresh below. prominulous when dried; collective vein arising from near the base, weakly sunken above, weakly raised below, drying weakly raised above and below, less prominent than primary lateral veins, 3-10 mm from margin. INFLORESCENCES erect to erect-spreading; peduncle 34-48 cm long, ca. 4 mm diam., 3.3-4.2 x as long as petiole, drying blackish brown, terete; spathe spreading-recurled, subcoriaceous, green, oblong-elliptic, 13.5- 15 cm long, 3 cm wide, acute at apex; stipe 5.5-7 cm long in front, 5.3- 6 cm long in back; spadix dark violet-purple, blackish when dried, weakly tapered, ± erect, curved, 8.5-10 cm long, 6-8 mm diam. near base, 4-5 mm diam. near apex; flowers square to rhombic, 1.5-2 mm long, 1.2-1.9 mm wide, the sides ± straight; (5)6-9 flowers visible in principal spiral, (8)9-12 in alternate spiral; tepals matte; lateral tepals 1.3- 1.5 mm wide, the inner margins straight to concave, the outer margins 2-sided; pistils weakly exserted; stigma slitlike, ca. 0.3-0.4 mm long; anthers ca. 0.4-0.5 mm long, (0.4)0.5-0.6 mm wide; thecae oblong, not divaricate. INFRUCTESCENCE with spathe withered; spadix 17.5 cm long, ca. 1.2 cm diam.; berries (rehydrated) oblong, apparently rounded at apex, ca. 4.6-5 mm long, 3-3.2 mm diam.; seeds 2 per berry, yellow-brown with darker punctations, oblong-ovoid to somewhat broadly ellipsoid, slightly flattened laterally, 2.9-3.5 mm long, 2-2.3 mm diam., 0.9-1.5 mm thick.