Anthurium rotundistigmatum Croat

Epiphyte; stems 15-30 cm long, 1.5-2.5 cm diam.; leaf scars 1.4-2 cm wide, roots few, 2-3 mm diam.; cataphylls coriaceous, (5-)9.5-10 cm long, acute and apiculate at apex (the apiculum ca. 2 mm long), green or suffused with violet purple, turning brown on drying (B & K Red 9/10), deciduous more or less intact. LEAVES with petioles erect or spreading, (22-)28-40 cm long, 4-6 mm diam., sometimes tinged purplish near base, shallowly and bluntly sulcate, rounded abaxially; geniculum 2-4 cm long, same color and shape as petiole; blades ovate-triangular, acuminate and downturned at apex, deeply lobed at base, (23-)26-56 cm long, 17-30 cm wide, broadest at point of petiole attachment, the anterior lobe 19-45 cm long, the posterior lobes 7-18 cm long, the sinus parabolic, sometimes spathulate, rounded or obtuse at apex; upper surface matte to semiglossy, lower surface matte; midrib prominently and convexly raised below; basal veins 5-7 pairs, up to 5 of them coalesced 2.5-3 cm, paler than surface and sunken or raised in valleys above, the posterior rib naked ca. half way, the outer margin rolled inward except near the point of petiole attachment; primary lateral veins 4-8 per side, departing midrib at 40-45° angle, paler than surface, sunken above, raised and paler than surface below, arcuate ascending; interprimary veins flat or sunken and paler above, raised and darker below; collective vein arising from near apex, 2-6 mm from margin, sunken above, raised below. INFLORESCENCE spreading; peduncle 8-13.5 cm long, 3-7 mm diam., flexible to more or less stiff, shorter than petiole; spathe subcoriaceous, pale green heavily tinged with reddish purple at anthesis, usually drying reddish brown, oblong-oblanceolate, 8-12.5 cm long, 1-3.8 cm wide, broadest ca. 2 mm above the point of attachment, acuminate at apex, rounded at base, inserted at ca. 45° angle on peduncle, spreading and often twisted, the margins upturned, forming a pocket at the base; spadix purplish (B & K Purple 2/2.5) at anthesis, 10-17 cm long, 7-11 mm diam. at base, 4-5 mm diam. At apex; flowers 4-lobed, 3-3.5 mm long, 2-2.5 mm wide, the sides jaggedly sigmoid, 9-12 flowers visible in the principal spiral, 7-8 flowers visible in the alternate spiral; tepals dark purple with pale punctuation's, minutely papillate, semiglossy, separating as stamens emerge to show deep, pale yellow cracks, the lateral tepals 1.6-1.8 mm wide, the outer margin irregularly 3-sided; pistil slightly emergent at anthesis, paler than tepals (translucent white suffused with purple), at first covered by tepals, exposed ca. 1 week before first stamens emerge, becoming prominently exserted; stigma oblong-elliptic, white, ca. 0.5 mm long with glistening papillae, filled with droplets 4-6 days before stamens emerge, dry when stamens open; stamens usually emerging from the base or sometimes scattered throughout, developing a full complement promptly except for the flowers in the advancing spirals, the stamens positioned at random around pistil; filaments retracting to hold anthers against pistil, transparent, ca. 0.7 mm long, 0.6 mm wide; anthers yellow, held curved over pistil before opening, ca. 0.9 mm long, 0.7-0.8 mm wide; thecae ellipsoid, not divaricate; pollen yellow fading white (B & K Yellow 9/7.5). INFRUCTESCENCE pendent, to 25 cm long, 4 cm diam. with berries exserted; berries obovoid, rounded at apex, ca. 6 mm long, 4.5 mm diam., red at apex, the exposed area around the style round and scurfy, ca. 2 mm diam.; pericarp thin, with moderately few punctiform raphide cells near the apex; seeds 2, broadly ellipsoid, markedly flattened, greenish, 2.5-3 mm long, 2.2-2.5 mm wide.