Pflanzenwissen · Art
Usually terrestrial, sometimes epiphytic, creeping; stems elongate; internodes 1-6 cm long; cataphylls thin, 2-9 cm long, weathering into fine longitudinal fibers, ultimately deciduous.
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Usually terrestrial, sometimes epiphytic, creeping; stems elongate; internodes 1-6 cm long; cataphylls thin, 2-9 cm long, weathering into fine longitudinal fibers, ultimately deciduous. LEAVES with petioles erect, 18-36(40) cm long, weakly sulcate; blades 3-parted, moderately thin, leaflets sessile or on petiolules to 2 cm long; median leaflet ± elliptic to ovate, 12-25 cm long, 4-11 cm wide, long-acuminate at apex, obtuse at base, lateral leaflets inequilateral ca. two-thirds as long as median leaflet, short-acuminate at apex, inner margin attenuate at base, outer margin rounded; the midrib in the median leaflet sunken above, raised below; primary lateral veins 3-5 per side, sunken above, raised below; departing midrib at 35°-45° angle, the collective vein arising from the base, 3-5 mm from margin. INFLORESCENCE erect, shorter than leaves; peduncle 9-22 cm long, terete; spathe lanceolate or ovate, green becoming white or yellow, 4-6 cm long, 1.2-2.5 cm wide, acuminate at apex, rounded at base; spadix green to yellow, scarcely tapered, 3.7-5 cm long, 4-6 mm diam. at base: the flowers 4-lobed, ca. 1.7 mm in both directions, the sides sigmoid; ca. 6 flowers visible in the principal spiral, ca. 5 flowers visible in the alternate spiral: lateral tepals 0.9-1 mm wide, the inner margin convex; pistils emergent; stigma elliptic; stamens emerging irregularly throughout spadix, held at edge of tepals; thecae ellipsoid. INFRUCTESCENCE with spadix to 6.5 cm long, berries violet-purple, globose to ovoid, with a short beak.
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Heimisch
Kolumbien (Chocó, Nariño, Valle), Parque Nacional Natural Utría
Vorkommen (Status unklar)
Kolumbien, Costa Rica, Ecuador, Panama
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Small, creeping herb, epiphytic or terrestrial to 1 m tall; internodes 1- 10 cm long, 4-10 mm diam., green, subterete; cataphylls narrowly triangular, 2-8 cm long, disintegrating to fibers, ultimately deciduous; petioles slender, 18-41 cm long, drying 2-3 mm diam., narrowly flattened adaxially, narrowly and bluntly sulcate; blades trisect, 15-25 cm long, 16-23 cm wide, subcoriaceous, dark green and matte to semiglossy above, matte and slightly to moderately paler below; midrib sunken above, convex below; primary lateral veins 3- 5 pair, the segments sessile or with petiolules to 2 cm long; medial segment ovate, acuminate at apex, acute at base, 12-25 cm long, (4-)18-25 cm long, 4-11 cm wide. INFLORESCENCE erect; peduncle slender, terete, 1/2-3/4 the length of the petioles; spathe 4-6 cm long, 1-2.5 cm wide, medium green to pale green, becoming whitish or yellowish at anthesis, ovate, acuminate at apex, acute or rounded at base, erect-spreading, finally reflexed; spadix cylindrical, pale yellow-green, to yellowish except green at tip, 3-8 cm long, 5-7 mm diam. Flowers 6-8 visible per spiral, 2.5-3.0 mm long, 2.0-2.3 mm wide, lateral tepals 1.2-1.4 mm wide, drying brown, minutely granular; outer margin 2-3 sided, inner margin rounded. INFRUCTESCENCE: berries white at base, red to violet-purple at apex, white at base, globose with a short beak.
Tropical wet forest life zones.
Anthurium trisectum ranges from Costa Rica (Heredia and San Jose) and Panama (Chiriqui, Cocle, Col6n and Veraguas) then along the Pacific slope to Colombia (Choco, Narino and Valle del Cauca) and Ecuador (Carchi, Esmeraldas and Pichincha) at elevations of 0-2,000 m in Tropical moist forest, Tropical wet forest, and Tropical rain forest, Premontane moist forest, Premontane wet forest, and Premontane rain forest, and Lower montane rain forest.
The species occurs from Costa Rica to Ecuador. In Costa Rica the species is known only from the OTS La Selva research area, 100 to 200 m elevation, in Heredia. In Panama, the species is known from Cocle, Colon and Veraguas Provinces, principally on the Atlantic slope.