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  1. Family: Araceae Juss.
    1. Genus: Pothos L.
      1. Pothos macrocephalus Scort. ex Hook.f.

        This species is accepted, and its native range is Nicobar Islands, Peninsula Thailand to Sumatera.

    [CATE]

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

    Distribution
    Thailand (Yala & Narathiwat). In Malesia: Peninsular Malaysia, Sumatera (Riau Province).
    Habitat
    Rain forest on granitic or limestone rock along streams in moist evergreen forest on moderate slopes, rarely in swamp forest.
    General Description
    Large, robust, root-climbing liane to 15 m. Shoot system well differentiated into adherent climbing shoots and free lateral flowering branches; eocaul not observed; seedling with congested leaves similar to adult. LEAVES bright to mid-green adaxially, paler abaxially, drying dull green to brownish; petiole 5–14 × 0.5–1.5 cm, broadly winged, oblong to obovate-oblong, base decurrent to clawed, apex truncate, rounded or auriculate; blade 3–18 × 1.5–20.5 cm, ovate to elliptic or lanceolate, apex attenuate-mucronate to acute or attenuate, minutely apiculate, base rounded to acute; primary lateral veins arising at c. 50°, intramarginal veins 2 to 4 veins per side of the midrib. INFLORESCENCE solitary, in the axils of middle and distal leaves, sometimes arising on older (foliage) leafless parts, borne on condensed shoots and subtended by cataphylls, the last and longest cataphylls to 3.5 cm long; peduncle 4–10 × 0.15–0.2 cm, rather stout, erect, dull orange-yellow. Spathe 4–12 × 4–10 mm, ovate, flat to convex, base cordate, clasping the peduncle, apex slightly raised, acute to subacute with a stout mucro, white, somewhat waxy. Spadix stipitate; stipe 2.75–4 × 0.2–0.25 cm, erect, straight, pale green; fertile portion 12.5–15 × 10–12 mm, ovoid-clavate, mid-yellow. Flowers c. 1–2 mm diam.; with 6 free tepals and 6 stamens. INFRUCTESCENCE with 1–5 berries; fruit 10–17.5 × 10–14 mm, obclavate to ovoid or ellipsoid, epidermis of upper part roughened in submature fruits, more or less smooth when ripe, deep green ripening to scarlet; seeds c. 3–6 mm diam., ellipsoid to compressed-globose.
    Diagnostic
    A large distinctive hemiepiphyte which, for the area under review, has so far been collected only in Yala and Narathiwat provinces of peninsular Thailand where its occurrence is sporadic. The large yellow and white inflorescences are most similar in appearance to those of P. gigantipes (S. Vietnam & Cambodia). However, the form of the mature and juvenile leaves of these species is quite different. Sterile P. macrocephalus can be confused with P. scandens although in the latter the petiole is generally shorter than the lamina and overall P. macrocephalus is a more massive plant.

    Images

    Distribution

    Native to:

    Malaya, Nicobar Is., Sumatera, Thailand

    Other Data

    Pothos macrocephalus Scort. ex Hook.f. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 1, 2001 Scortechini, B. [116], Peninsular Malaysia K000291865 Unknown type material
    Aug 1, 2001 King's coll. [492], Peninsular Malaysia K000291862 Unknown type material
    Aug 1, 2001 King's coll. [6029], Peninsular Malaysia K000291863 Unknown type material
    Aug 1, 2001 King's coll. [4327], Peninsular Malaysia K000291864 Unknown type material
    Boyce, P.C. [1217], Thailand 63295.000

    Bibliography

    First published in Fl. Brit. India 6: 553 (1893)

    Accepted by

    • Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012). Flora of Thailand 11(2): 101-325. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Mansor, M., Boyce, P.C., Othman, A.S. & Sulaiman, B. (2012). The Araceae of peninsular Malaysia: 1-146. Penerbit Universiti Sains Malaysia.
    • Boyce, P.C. (2009). A review of Pothos L. (Araceae: Pothoideae: Pothoeae) for Thailand Thai Forest Bulletin (Botany) 37: 15-26.
    • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.
    • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions

    • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.

    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

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    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/