1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus nielsenii J.Dransf.

        This species is accepted, and its native range is Borneo (Sarawak: Gunung Mulu).

    [PW]
    Distribution
    Known only from the type collection from G Mulu National Park, 4th Division. Endemic.
    General Description
    Slender ?clustering rattan climbing to 1 m only; stem without sheaths 4 mm diam., with sheaths to 8 mm diam., internodes to 30 mm only. Sheath dull green, armed with numerous scattered brown stiff spines, 4- 8 mm long, with bulbous bases, those around the sheath mouth longer, to 10 mm, pale buff indumentum abundant between the spines; knee inconspicuous; ocrea well developed, tubular at first, later splitting to give auricles. Flagellum not seen, but inflorescences flagellate. Leaf ecirrate to 38 cm long including the petiole c. 8 cm long; petiole armed with scattered reflexed spines to 2 mm and abundant reddish-brown hairs; leaflets acuminate, ± linear or narrow lanceolate, 1 on each side of the rachis, grouped in 2's or 3's, the longest to 18 x 1.4 cm, apical leaflets to 13 x 1 cm, joined together at the base; lower leaflet surface bearing scattered reddish-brown hairs particularly at the base, leaflet tips bristly. Inflorescence only the male known, flagellate, longer than the leaves, to 95 cm, with 5 partial inflorescences; peduncle c 35 cm, very slender, bracts tightly sheathing, inconspicuous; rachillae few, c. 35 mm long, purplish brown, bearing distichous rather lax flowers. Other parts not known (Fig. 78).

    Images

    Distribution

    Calamus nielsenii J.Dransf. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nielsen, I. [761], Sarawak K000207811 holotype

    First published in Kew Bull. 35: 843 (1981)

    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, The Rattans of Sarawak. 1992

    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