1. Family: Araceae Juss.
    1. Genus: Anthurium Schott
      1. Anthurium ventanasense Croat

        This species is accepted, and its native range is Ecuador.


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


    Anthurium ventanasense is endemic to Ecuador, known only on the western slopes of the Andes in Los Hios and Guayas Provinces at 80-300 m in Premontane wet forest and Tropical moist forest life zones. Gentry, Foster and Josse reportedly collected a specimen in Esmeraldas (72902) but this cannot be verified.

    General Description

    Epiphyte; roots pale green, descending, smooth; stem short; internodes short, 3.5-5 cm diam; cataphylls 4-7.5 cm long, narrowly short-apiculate at apex, persisting as network of fibers at upper nodes, red-brown with fragments of epidermis, 8-9 cm long; petioles 24-42 em long, broadly and sharply V-sulcate adaxially with a low to prominently raised, bluntly acute medial rib, narrowly rounded to bluntly 1-ribbed to acutely I-ribbed abaxially, matte, densely and obscurely whitish striate, 18-42 cm long (averaging 22.4 cm), 8-10 mm broad, deeply and sharply sulcate adaxially; blades oblanceolate-elliptic to ovate-elliptic, acute to obtuse or subrounded and abruptly short-acuminate at apex (usually with a short apiculum at apex), acute to weakly attenuate at base, paler and yellowish green to yellow-brown and weakly glossy below, 27-59 cm long, 8.5-21.5 cm wide, 2.4-4.5 times longer than wide (averaging 41 x 15 cm), 1.0-2.2 times longer than petiole (averaging 1.53 times) (slightly inequilaterally), dark green (B & K blue-green B & K 212.5), moderately bicolorous, moderately coriaceous, semi-glossy to weakly glossy above, dark glandular-punctuate and sub-matte to semi-glossy below, (drying medium green to gray-green and matte to weakly glossy above; midrib flat near base, becoming obtusely raised & densely pale short-lineate above, thicker, convex to acutely raised and concolorous below, drying usually more or less acute, usually darker than surface on both sides, (sides convex, raised and thicker below); prilnary lateral veins 11-15 pairs, moderately obscure, weakly raised but in deep valleys in older, more quilted blades, concolorous and weakly raised below, scarcely more prominent than interprimary lateral veins, drying weakly raised and concolorous on both surfaces, weakly raised below; interprimary and tertiary veins obscure above, weakly raised and concolorous below, almost as prominent as primary lateral veins; collective veins as prominent as primary lateral veins, shaped like primary lateral veins, weakly loop-connecting the primaly lateral veins, extending (.5)1-1.3 cm from the margins, basal veins 2 pair on each side, free to base, the outermost extending to the margin in lower 1/4 of blade, the inner veins extending to apex, prominently loop-connected to primary lateral veins, .5-1.5 cm from margin. INFLORESCENCE erect-spreading, to 26 cm long, medium green, densely pale short-lineate; peduncle 21-51 cm long, 2-6 mm diam., more or less terete, 2-ribbed beneath, green to purplish green, weakly glossy; spathe 9.8-18 cm long, 1.2 cm wide, spreading, 1-2.3 cm wide, inserted on peduncle at 45° angle, narrowly long-acuminate at apex (tightly inrollecl to 8 mm at apex), clasping, rounded to emarginate at base, greenish purple, sometimes darker purple on veins, matte on inside, weakly glossy outside, strongly directed down-ward along margins, becoming inrolled along the margins in age; spadix (9-)28-40.7 cm long, 7- 10 mm cliam. at base, 7.5 mm diam. midway, 5 mm cliam. 1 cm from tip, narrowly long-tapered, yellowish in lower 2/3, more olive-brown toward apex, becoming heavily tinged purple, becoming dark purple-gray; stigmas purplish; flowers 7-9 per spiral, (1.9-)2.2-4.5 mm long, 1.8-3 mm wide, straight along lateral margins, smoothly to jaggedly sigmoid on sides perpendicular to margins; lateral tepals (1.4-)1.8-2.8 mm wide, with outer margin 2-3-sided, (one of the 2 sides broader), inner margin straight to broadly rounded, densely granular on drying; stamens held just above the tepals, .3-.5 mm long, .7-1.1 mm wide, the lateral stamens emerging throughout the length ofthe spadix before any anterior stamens emerge, thecae broadly divaricate; pollen white, thecae ovoid, markedly divaricate, INFRUCTESCENCE with berries held above tepals, ovoid to ellipsoid, creamy white except lavender-violet at apex, depressed and whitish around stigma; drying yellow; seeds (1)2-4, 3.0 mm long, 15 mm wide, 1 mm thick, ellipsoidal, flattened on one side, whitish, greenish towards base and apiculate.



    Native to:


    Anthurium ventanasense Croat appears in other Kew resources:

    First published in Aroideana 31: 39 (2008)

    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.


    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.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. 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 2020. 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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/