1. Family: Araceae Juss.
    1. Genus: Anthurium Schott
      1. Anthurium silverstonei Croat & Oberle

        This species is accepted, and its native range is Colombia (Chocó).

    [CATE]

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

    Distribution

    Anthurium silverstonei, pending additional extensive collection, is endemic to a single mountain, Cerro del Tomi, that is rather isolated in the Western Cordillera of the Choco Department. Populations of the species inhabit a range of life zones along an altitudinal gradient from Premontane rain forest (bp-P) at 1,000-1,150 m along the northern slopes of the mountain, up to elfin Montane rain forest (bp-M) at 2,500-2,700 m approaching the summit. This wide altitudinal distribution on the mountain suggests it might range further north and east into the rest of the Cordillera Occidental and to the Departments Risaralda and Valle.

    General Description

    Erect or repent terrestrial herb, rarely epiphytic; stem 1.7-2.5 m long, interior of the stem tissue pinkish white; leaf scars obscured by cataphylls; internodes terete, longer than broad, 5-11 cm long, 2.7-3.5 cm diam.; catapbylls coriaceous, 1-ribbed, 38-61 cm long, 7-14.5 cm wide at base when flattened, drying tan to reddish brown, persisting intact. LEAVES erect-spreading; petioles 95-130 cm long, 12-18 mm diam., subterete, shallowly sulcate adaxially; geniculum swollen, sometimes reddish, 3-6 cm long; blades emerging brown with green venation, mature blade ovate-cordate, 66-92 cm long, 45-54 cm wide, broadest in lower third, coriaceous, short-acuminate at apex (acumen 5-10 mm long); anterior lobe 50-70 cm long; posterior lobe 20-26 cm long, 20-25 cm wide, broadest at point of petiole attachment, directed inward; sinus obovate, 18-22 cm deep; upper surface green, drying semiglossy, silvery-gray, with sparse brown punctations and linear cellular inclusions, lower surface green, drying darker, appearing more silvery-purplish, with dense brown punctations; midrib yellowish green, drying narrowly convex above, nearly round-raised below with 3-5 ridges; basal veins 7-8 pairs, 2 pairs free to the base, third pair weakly coalesced at 7-15 mm, drying etched above, sharply acute below; posterior rib naked to 5-7 cm; primary lateral veins 10-15 per side, departing midrib at a 50°-60° angle, ascending to the collective vein, drying raised or etched above, acutely raised below; interprimary veins drying less prominent than primary lateral veins; tertiary veins drying prominulous; collective vein arising from the base, equally as prominent as primary lateral veins, 1-3 mm from margin. INFLORESCENCE erect; peduncle 58-102 cm, 6-12 mm diam., purplish-green, terete to shallowly sulcate; spathe 17.5-31 cm long, 5-10 cm wide, oblanceolate, broadest in lower third, coriaceous, erect to erect-spreading, bicolorous, greenish or whitish on outer surface, green to purple on inner surface, often with pinkish to purplish veins visible on either surface, inserted at a 30°-40° angle on the peduncle, acuminate at apex (acumen to 15 mm long) acute at base, margins meeting at a 50°-75° angle; spadix 20-40 cm long, 2.1-3.8 cm diam. at anthesis, green becoming pink or purple, subsessile, weakly tapered, erect to curved away from spathe, held erect to at 35° angle from the peduncle; flowers rhombic to weakly 4-lobed, 2.1-2.5 mm long, 1.9-2.1 mm wide, edges weakly sigmoid, 14-15 flowers visible in principal spiral, 19-20 flowers visible in alternate spiral; stigma purplish-brown, ellipsoid, 0.4 mm long; tepals matte, drying pinkish, lateral tepals 1-1.1 mm wide, inner margins straight to weakly rounded, outer margins angled; anthers white at dehiscence, drying yellow or pinkish, 0.4 mm long, 0.5 mm wide, thecae ovoid, not divaricate. INFRUCTESCENCE spreading; spathe becoming brittle, sometimes deciduous; spadix, 39-55 cm long, 3-4.5 cm diam., with berries scattered throughout; berries yellowish-green, ellipsoid, apex rounded, dark brown, 6.5-8.0 mm long, 3.7-3.7 mm diam., base often pinkish; seeds not seen.

    [CPLC]

    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
    Endémica y nativa en Colombia; Alt. 1000 - 2700 m.; Andes.
    Habit
    Hierba
    Conservation
    No Evaluada

    Distribution

    Native to:

    Colombia

    Anthurium silverstonei Croat & Oberle appears in other Kew resources:

    First published in Aroideana 27: 79 (2004)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Sources

    CATE Araceae
    Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Catálogo de Plantas y Líquenes de Colombia
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0