Anthurium formosum Schott

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: not threatened. Confidence: confident

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution

Nativa en Colombia; Alt. 0 - 3000 m.; Andes, Pacífico.

Morphology General Habit

Hierba, trepadora, epífita

Conservation

Preocupación Menor

Distribution

Biogeografic region: Andean, Pacific. Elevation range: 0–3000 m a.s.l. Native to Colombia. Colombian departments: Antioquia, Caquetá, Chocó, Cundinamarca, Huila, Meta, Nariño, Putumayo, Risaralda, Santander, Tolima, Valle del Cauca.

Habit

Herb, Epiphyte, Climbing.

Conservation

National Red List of Colombia (2021): Potential LC.

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

Habitat

In Costa Rica and Panama the species occurs in premontane wet forest and more commonly in premontane rain forest and lower montane rain forest. It is often one of the most common species at middle elevations, where it is generally found along shady road banks and sometimes forms large stands.

General Description

Epiphytic or often terrestrial; stems often to 1 m long; roots thick, directed downward; cataphylls coriaceous, narrowly rounded at apex, with subapical apiculum, drying tan, persisting intact. LEAVES erect-spreading; petioles 40-150 cm long, 0.6-1 cm diam., subterete, weakly flattened or weakly sulcate adaxially; geniculum 2-2.2 cm long, tinged pinkish; blades ovate, 30-80 cm long, 20-52 cm wide, acuminate and turning down at apex, deeply lobed at base; anterior lobe 31-54 cm long; the posterior lobes 13-20 cm long; sinus broadly hippocrepiform to spathulate; both surfaces glossy; midrib acutely raised above and below; primary lateral veins 7-9 per side, sunken in valleys above, raised below; interprimary veins sunken above, raised below; basal veins 7-8 pairs, the fourth to sixth coalesced 2.5-3 cm; the posterior rib naked, turned up; collective vein usually arising from one of the lowermost basal veins, frequently from the second or third basal vein, 2-4 mm from the margin. INFLORESCENCE erect-spreading; peduncle 21-47 cm long, stout; spathe subcoriaceous, ovate or oblong-elliptic, pale greenish white to pale violet, 12.5-24 cm long, 3-8.5 cm wide, cuspidate at apex, round at base, held close to spadix even in fruit, inserted at 45° angle on peduncle; spadix stipitate 12-15 mm in front, 2-3 mm in back, white to violet-purple, ± oblong to tapered to both ends, 5.5-14.5 cm long, 1.2-1.5 cm diam. at middle, 7-9 mm at base and apex; flowers rhombic to 4-lobed, 2.3-3 mm long, 3-3.8 mm wide, the sides jaggedly sigmoid; 9-15 flowers visible in the principal spiral, 10-20 flowers visible in the alternate spiral; tepals glossy, the lateral tepals 1-1.5 mm wide, the inner margins rounded to angulate; pistils early emergent; stigmas deep purple, ultimately brushlike; stamens emerging from base of spadix, the lateral stamens emerging throughout before alternate stamens emerge, held in a tight cluster over pistil; filaments pale lavender; anthers pale lavender to deep red-violet, sometimes white tinged with red-violet at margins; pollen white. INFRUCTESCENCE with spadix 18-32 cm long; berries dark reddish-violet to violet-purple, often reddish-orange at base, narrowly acute at apex, 10-12 mm long, 4-5 mm wide; seeds 2, 7-8.4 mm long, 3-3.5 mm wide.

Distribution

Nicaragua, Costa Rica, Panama, Colombia, Ecuador, Peru, Venezuela.