1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus pycnocarpus (Furtado) J.Dransf.

        This species is accepted, and its native range is Peninsula Malaysia (Trengganu).

    [PW]
    Distribution
    Trengganu: Endemic.
    Vernacular
    rotan kong
    General Description
    Slender clustering rattan climbing to 30 cm; stem without sheaths 5 mm in diameter with internodes to 25 cm; stem with sheaths 1.5 cm in diameter. Sheaths bright green with scattered yellowish black-tipped spines of varying length the largest to 1.5 cm long interspersed with much smaller spines to 1 mm long mostly ± horizontal. Knee present, rather small, ocrea very short. Flagellum to 1.25 m. Leaf to about 40 cm long sessile or with a very short petiole scarcely exceeding 3 cm long. No cirrus. Leaflets 7 to 8 in number the uppermost four in a group with the 2 apical leaflets joined through up to Vs their length, with rachis continuing, spiny along underside, lower leaflets in a basal group separated by about 25 cm from upper; leaflets ± equal to 30 cm long by 3 cm wide, the lowermost usually somewhat narrower, all leaflets bristly at tip. Inflorescence very short, to 25 cm long, very rarely longer, with one partial inflorescence only, the axis continuing as a short flagellum beyond this; bracts sparsely to densely spiny; male partial inflorescence branched once only bearing densely crowded flowers to 6 mm long. Female partial inflorescence spike-like or branched once. Female with densely crowded flowers. Ripe fruit to 2.2 cm long including conspicuous beak, by 1.5 cm wide elongate ovoid, covered in 14-18 vertical rows of dull chestnut brown scales with shiny black margins (whole fruit black scaly when young), with very faint groove. Seed angular; endosperm homogeneous. Seedling unknown.

    Images

    Distribution

    Calamus pycnocarpus (Furtado) J.Dransf. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Corner, E.J.H. [30293], Peninsular Malaysia K000207772 holotype

    First published in Malaysian Forester 40: 202 (1977)

    Accepted by

    • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

    Literature

    Palmweb - Palms of the World Online
    • J. Dransfield, A Manual of the rattans of the Malay Peninsula. Malayan Forest Recirds 29.. 1979

    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.
    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 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