1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus macrophyllus (Becc.) W.J.Baker

        This species is accepted, and its native range is Peninsula Thailand to Peninsula Malaysia.

    [PW]
    General Description
    Clustering moderate-sized high climbing rattan reaching to 20 m or more in the canopy. Stem without sheaths to 1.5 cm in diameter, with sheaths to 3 cm, internodes to 10 cm in length. Sheaths bright green very densely armed with green collars and black and brown horse-hair-like spines of varying length, mostly about 2 cm long, or 5 cm long at least 1 pair of collars interlocking to form an ant tunnel (these usually 2-3 each sheath); pale to dark brown indumentum abundant between spines. Knee present, obscured by the spines. Ocrea inconspicuous. Leaf to 2.25 m long including the petiole and the 1.25 m long cirrus. Petiole rather long, to 50 cm or more armed with reflexed groups of tiny black spines and larger yellowish spines. Leaflets up to about 10 on each side, much fewer in juveniles, irregularly arranged, the lowermost 2 very large and broad, to 60 cm long by 10 cm wide, the upper leaflets much narrower to 50 cm long by 2.5 cm wide in pairs or 3's or 4's with sparse marginal bristles. Inflorescences male and female superficially similar, the prophyll usually long persisting, very heavily armed with collars and black bristles as the leaf sheath, the other bracts quickly falling at anthesis; whole inflorescence to 60 cm and more. Mature fruit ovoid 2.1 by 1.5 cm, very briefly beaked, covered in 16-18 vertical rows of yellowish brown reflexed scales. Seed ovoid, about 1.5 cm long by 1.1 cm wide, slightly flattened on one side, densely pitted. Endosperm deeply ruminate. Seedling leaf unknown.
    Distribution
    Perak, Trengganu, NegriSembilan, Pahang, Selangor, Johore: Endemic.
    Vernacular
    rotan cincin
    [PW]
    Use
    Produces a cane of moderate quality, sometimes collected and mixed in with rotangetah.

    Images

    Distribution

    Native to:

    Malaya, Thailand

    Calamus macrophyllus (Becc.) W.J.Baker appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dransfield [5034], Malaysia Daemonorops macrophylla 29047.338

    First published in Phytotaxa 197(2): 145 (2015)

    Sources

    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.

    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

    Palmweb - Palms of the World Online
    Palmweb 2011. Palmweb: Palms of the World Online. Published on the internet http://www.palmweb.org. Accessed on 21/04/2013
    Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License http://creativecommons.org/licenses/by-nc-sa/3.0