1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus densiflorus Becc.

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

    [PW]
    General Description
    Clustering high climbing moderate rattan with stems reaching 30-40 m tall. Stem without sheaths to 2.2 cm in diameter usually less; with sheaths to 4 cm. Internodes to 18 cm, usually much less in mature flowering stems. Sheaths bright to yellowish green armed densely with reflexed blackish-brown spines of various lengths, sometimes with hairy margins, to 2.2 cm long by 1 cm wide, the spine bases often joined by swollen ridges, and dense black caducous scales between spines. Knee prominent. Ocrea inconspicuous. Flagellum to 3.0 m. Leaf ecirrate, in juvenile specimens with petiole to 20 cm, in mature specimens usually no petiole. Whole leaf to 1.1 m, distinctly arcuate; leaflets regular close narrow and arcuate, up to about 60 on each side, the longest about Vi way up about 30 cm long by 1.5 cm wide, decreasing in size to c. 7 cm by 7 mm near the tip, conspicuously bristly on 3 nerves above, and on mid-nerve below, and along margins. Inflorescences male and female superficially similar, to 3 m long longly flagellate, with up to 6 rather distant partial inflorescences and sparsely spiny bracts. Partial inflorescences rather short, to 30 cm long, very dense flowered, with straight or slightly curved rachillae to 10 cm long. Ripe fruit ovoid, about 2 cm long and 1.2 cm wide, shortly beaked, covered in 18 vertical rows of straw-coloured scales. Seed somewhat angular pitted, ruminate. Seedling leaf unknown.
    Vernacular
    rotan kerai
    Distribution
    All states except Perlis, Kelantan and Penang. Singapore. Endemic.
    [PW]
    Use
    Medium sized cane of moderate quality entering trade as rotan kerai but as this name is applied to many species it is not certain how much of the cane comes from C. densiflorus.

    Images

    Distribution

    Native to:

    Malaya, Sumatera, Thailand

    Calamus densiflorus Becc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Griffith [s.n.], Peninsular Malaysia K000207697 isotype
    Dransfield, J. [5373], Malaysia 43725.000
    Kunstler, H. [8434], Peninsular Malaysia K000207699 isotype
    Kunstler, H. [8434], Peninsular Malaysia K000207698 isotype
    Kunstler, H. [5527], Peninsular Malaysia K000208106 isotype
    Kunstler, H. [8434], Peninsular Malaysia K000208107 isotype
    Saw Leng Guan [FRI44427], Malaysia K000208209

    First published in J.D.Hooker, Fl. Brit. India 6: 445 (1893)

    Accepted by

    • Barfod, A.S. & Dransfield, J. (2013). Flora of Thailand 11(3): 323-498. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Henderson, A. (2009). Palms of Southern Asia: 1-197. Princeton university press, Princeton and Oxford.
    • 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
    Kew Backbone Distributions
    • Henderson, A. (2009). Palms of Southern Asia: 1-197. Princeton university press, Princeton and Oxford.

    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