Anthurium lezamae Matuda

Terrestrial; the stems short, 1.5 cm diam., internodes very close; cataphylls thin, 5-7 cm long, drying reddish-brown, soon weathering at least at base into thin, mostly longitudinally oriented fibers. LEAVES with petioles 17-41 cm long, 2-4 mm diam., terete; geniculum 1-1.5 cm long; blades ovate to ovate-triangular, gradually acuminate at apex, deeply lobed at base, 13-28 cm long, 9-18.5 cm wide, broadest at the middle or at the base, the margin slightly hyaline (on drying), weakly revolute; anterior lobe 12.5-20.5 cm long, the margin almost straight to broadly rounded, (sometimes somewhat bulged at base of lobe), the margins sometimes somewhat variable with one margin slightly convex, the other slightly concave; the posterior lobes directed downward or slightly outward, 6-11.5 cm long, 3.5-6.5 cm wide; the sinus usually obovate, rarely parabolic, rounded or obtuse at apex; the upper surface with the epidermis drying with a characteristically raised, alveolate reticulation (papillate when fresh), the lower surface drying more or less smooth; the midrib raised on both surfaces; basal veins 4-5(6) pairs raised on both surfaces, the third and fourth (fifth) coalesced 4.5-6 cm, all but the uppermost arcuate-ascending, joining the margin, the second basal vein joining the margin well above the sinus and sometimes well above the middle of the blade; the primary lateral veins 2-3 per side, usually scarcely apparent, departing the midrib at 70°-80° angle, sometimes curving laterally at almost a 90° angle to the midrib, prominulous above and below, scarcely or not at all more prominent than the interprimary veins or tertiary veins; the tertiary veins weakly raised above and below; the collective vein arising from the uppermost basal vein, 5-13 mm from the margin, weakly raised on both surfaces. INFLORESCENCE usually held erect, well above the leaves; peduncles 37-78 cm long, 3-4 mm diam., longer than the petioles; spathe weakly coriaceous, green, lanceolate to oblong-lanceolate, 3.7-6.5 cm long, 7-14 mm wide, broadest just above the base or at the middle, acuminate at apex, weakly cordate and somewhat clasping at base, inserted at a 45° angle on the peduncle; stipe 2-4 mm long in front, 1-3 mm long in back; spadix greenish, 4-6.5 cm long, 5-6 mm diam. at base, 3-4 mm diam. At apex, held at 180° angle from peduncle; flowers rhombic, 3-4 mm long, (dry) 2.5-2.8 mm wide, (dry) the sides straight, parallel to spiral, gradually sigmoid perpendicular to the spiral; 4-6 flowers visible in the principal spiral, 3-4 flowers visible in the alternate spiral; tepals weakly glossy, minutely and densely punctate, lateral tepals 1.8-2 mm wide, the inner margin very broadly rounded, the alternate pair with inner margins straight to concave; pistil greenish, not emergent; stigma ca. 1 mm long, linear; stamens emerging promptly, from the base, the lateral stamens preceding the third and fourth stamens by only a few spirals, held just above the tepals in a close circle around the stigma; anthers 0.5 mm long, 0.7 mm wide; thecae semicircular, flat, not at all divaricate. INFRUCTESCENCE not seen.