Anthurium lennartii Croat

Description based on dried material only. Epiphytic; stem ca. 1.5 cm diam.; roots moderately numerous, pale grayish, shortly pubescent, moderately elongate, ca. 2-3 mm diam.; cataphylls subcoriaceous, ca. 10 cm long, light brown, persisting as linear fibers, soon deciduous. LEAVES with petioles 7-11.5 cm long, 5-7 mm diam., D-shaped, with the margins sharply raised adaxially, probably 2-3-ribbed abaxially; geniculum slightly thicker than petiole, sometimes fissured transversely, 0.8- 1.5 cm long; sheath 3.5-5.5 cm long; blades subcoriaceous, oblong-elliptic, obtuse to semi-rounded at apex (the acumen shortly apiculate), obtuse to narrowly rounded at base, 55-98 cm long, 10-17.5 cm wide, broadest at or near the middle, both surfaces matte, green to yellowish; midrib convexly raised above, somewhat acute at base, becoming prominently convex toward the apex below; primary lateral veins 16-23 per side, departing midrib at (40)55-85° angle, arcuate to the collective vein, convexly raised above and below and paler than surface; interprimary veins moderately numerous, raised on both surfaces; tertiary veins weakly raised above and below; collective vein arising from the base or near the base, less prominent than primary lateral veins, raised above and below, 2-7 mm from margin. INFLORESCENCES with peduncle 20.5- 37.5 cm long, ca. 3-4 mm diam., 2.9-3.7 x as long as petiole, greenish to yellowish green, probably terete; spathe apparently spreading, subcoriaceous, green, broadly linear to linear-lanceolate, 7.5-9 cm long, 1.5-2 cm wide, broadest near the base, abruptly acuminate at apex (the acumen inrolled), acute at base; stipe 13 mm long in front, 3 mm long in back; spadix green, weakly tapered, 7 cm long, 5-6 mm diam. near base, 4 mm diam. near apex, broadest at the base; flowers rhombic to 4-lobed, 1.6-1.9 mm long, 1.5-1.8 mm wide, the sides usually jaggedly sigmoid, sometimes smoothly sigmoid; 6-8 flowers visible in principal spiral, 5-6 in alternate spiral; tepals roughened; lateral tepals 1-1.3 mm wide, the inner margins erose, broadly convex, the outer margins 2-sided; pistils exposed, yellowish; stigma slitlike, dark, ca. 0.4 mm long; anthers 0.5-0.7 mm long, 0.7-0.9 mm wide; thecae ovoid to oblong-ovoid, 0.3-0.4 mm wide, not divaricate. INFRUCTESCENCE with spathe persisting; spadix 15.5-26 cm long, 2.2-2.5 cm diam., with tepals becoming enlarged and conspicuous, often purplish; berries red to dark purple, after rehydration ovoid to ovoid-ellipsoid, acute to k rounded at apex, 6.3-8.5 mm long, 3.7-4.3 mm diam.; pericarp translucent with pale, linear raphide cells; mesocarp gelatinous, translucent, reddish; seeds 1-2 per berry, yellowish, ovoid to oblong-ovoid, flattened, 3-3.5 mm long, 2-2.7 mm diam., 1-1.5 mm thick, enveloped by gelatinous substance.