Anthurium uleanum var. uleanum

Epiphytic; stem to 15 cm long, ca. 2.5 cm diam.; roots dense, green to whitish, smooth to velutinous, 2-5 mm diam.; cataphylls lanceolate, straight to curved, subcoriaceous, 2-1 1.5 cm long, acute to acuminate at apex, drying reddish brown (B & K yellow-red 4/10), persisting semi-intact, weathering to reticulate fibers, apex sometimes remaining semi-intact. LEAVES erect-spreading; petioles (3)l0-36 cm long, 2-10 mm diam., D-shaped, sulcate adaxially with medial rib and acute margins, rounded or 2-7-ribbed abaxially; geniculum shaped like petiole, paler and thicker, 0.3-2 cm long; sheath 2.5-6 cm long; blades subcoriaceous, oblong-elliptic to oblong-oblanceolate to obovate, acute to acuminate at apex (the acumen flat), attenuate to acute at base, rarely truncate or subcordate, 20-65 cm long, 5.5-24 cm wide, broadest at or above the middle, the margins broadly undulate; upper surface semiglossy, medium green, drying gray to greenish brown, lower surface matte to semiglossy, slightly paler, drying greenish to gray-green to brown; midrib acutely raised above, acutely to obtusely or convexly raised below; primary lateral veins 5-11 per side, departing midrib at 30-85º angle, straight to arcuate to the margin, acutely raised; tertiary veins prominulous, raised on both surfaces on drying; collective vein arising from near the apex or absent, rarely from below the middle, sunken above, prominulous below, 4-8 mm from margin. INFLORESCENCES erect to spreading or spreading-pendent, usually shorter than leaves; peduncle 14-38 cm long, 3-6 mm diam., rarely less on drying, 0.5-3.7(6)x as long as petioles, terete, firm, flexible; spathe spreading to reflexed, rarely erect, subcoriaceous, matte abaxially, medium to pale green, sometimes tinged with red at margins, lanceolate to oblong-lanceolate, 3.5-14 cm long, 0.6-2.7 cm wide, broadest near the base, inserted at 30-50° angle on peduncle, acute to acuminate at apex (the acumen inrolled), acute to obtuse (sometimes decurrent 5-17 mm) at base; stipe 3- 7 mm long in front, 2-5 mm long in back; spadix usually pale reddish to purplish (B & K red 8/10), sometimes white to pale green, usually appearing glaucous, cylindroid to slightly tapered, curved, erect, (3)5-15 cm long, 3-5 mm diam. midway, 2-3 mm diam. near apex; flowers rhombic to 4- lobed, scarcely distinguishable, margins obscure, 1.8-2.5 mm long, 1.7-2.5 mm wide, the sides straight to jaggedly sigmoid; 6-10 flowers visible in principal spiral, 6-8 in alternate spiral; tepals matte, weakly papillate, pale olive; lateral tepals (0.5)2-2.2 mm wide, the inner margins broadly rounded to straight, the outer margins 2-3-sided; pistils weakly raised, not emergent, white to pale pinkish; stigma ellipsoid, 0.3 mm long; stamens emerging promptly in a regular sequence from the base, held well above the tepals then retracting to the tepal level, the laterals preceding the alternates by ca. 4-5 spirals, the 3rd stamen preceding the 4th by ca. 2 spirals; anthers white to pinkish, 0.4 mm long, 0.4-0.5 mm wide, inclined over and obscuring the pistil; thecae oblong, divaricate or not; pollen pale yellow, drying white. INFRUCTESCENCE ± pendent; spadix to 25 cm long, 1 cm diam.; berries reddish violet, 5 mm long, 2-4 mm diam.; seeds 1-2 per berry, 2.2-2.5 cm long, 0.8-0.9 mm thick, 1.2-1.3 mm wide.