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

        This species is accepted, and its native range is NW. Borneo.

    [PW]
    Distribution
    Widespread in Brunei. Also in Sarawak. Endemic.
    General Description
    Slender to moderate, solitary or clustered ant rattan, climbing to 20 m; stem without sheaths 8-10 mm diam., with sheaths to 20 mm diam., internodes c. 15 cm long. Sheath shiny green, reddish-brown tinged when young, bearing several collars with long horse-hair-like black spines to 8 cm long, 2-4 pairs of collars interlocking to form ant galleries, the spines bearing deciduous brown indumentum. Leaf cirrate, to 1.5 m (usually less), including petiole 25-40 cm and cirrus to 60 cm; petiole bearing groups of short spines to 4 mm, at the base intermingled with longer horsehair like spines; leaflets c. 20-50 on each side of the rachis, very close and regular, stiff, ± parallel-sided and abruptly narrowed at the base, the longest to c. 22 × 1.5 cm, usually narrower, conspicuously bristly on 3 veins and the margins on the upper surface, very sparsely bristly beneath. Inflorescences short or of moderate length, 15-30 cm long, peduncle short, unarmed or only very sparsely armed; prophyll and primary bracts deciduous, usually bearing horse-hair-like spines; flowers rather conspicuously stalked. Mature fruit rounded or slightly obovoid, c. 14 mm diam., very briefly beaked, covered in c. 15 vertical rows of pale brown scales with darker margins (pale green with reddish-brown margins when immature). Seed rounded, c. 10 mm diam.; endosperm deeply ruminate. Seedling leaf pinnate with very fine close leaflets. (Fig. 22, Pl. 4A, 7B).
    Vernacular
    Uwai Singkurung (Dus.)
    [PW]
    Use
    The cane is of good quality and is used split in basketry. The fruit can be eaten.

    Images

    Distribution

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

    Date Reference Identified As Barcode Type Status
    Aug 7, 1996 Graefen, A. [SFDP4], Indonesia Daemonorops formicaria K000520613
    Feb 23, 1989 Hock [S54186], Malaysia Daemonorops formicaria K000520616
    Aug 20, 1987 Othman [S43392], Malaysia Daemonorops formicaria K000520625
    Dec 17, 1984 Mogea, J.P. [3607], Indonesia Daemonorops formicaria K000520626
    Dec 7, 1984 Mogea, J.P. [3677], Indonesia Daemonorops formicaria K000520608
    Apr 22, 1981 Dransfield, J. [JD5946], Malaysia Daemonorops formicaria K000520629
    Aug 17, 1978 Chai, P. [S39751], Malaysia Daemonorops formicaria K000520624
    Oct 31, 1977 Chai, P. [S39600], Malaysia Daemonorops formicaria K000520614
    Oct 7, 1977 Dransfield, J. [JD5296], Malaysia Daemonorops formicaria K000520615
    Nov 24, 1975 Morshidi [S24101], Malaysia Daemonorops formicaria K000520627
    Aug 9, 1975 Dransfield, J. [JD4684], Malaysia Daemonorops formicaria K000520630
    May 14, 1975 Ashton, P.S. [S21566], Malaysia Daemonorops formicaria K000520622
    May 14, 1975 Ridley, H.N. [s.n.9], Malaysia Daemonorops formicaria K000520628
    May 14, 1975 Tomlinson [16], Malaysia Daemonorops formicaria K000520620
    Oct 29, 1969 Ashton, P.S. [S17601], Malaysia Daemonorops formicaria K000520611
    Nov 29, 1962 Au [S16752], Malaysia Daemonorops formicaria K000520621
    Tomlinson [15], Malaysia Daemonorops formicaria K000520612
    Dransfield, J. [6573], Brunei Daemonorops formicaria K000520609
    Wong, K.M. [323], Brunei Daemonorops formicaria K000520618
    Christensen [1036], Malaysia Daemonorops formicaria K000520617
    Kirkup, D.W. [470], Brunei Daemonorops formicaria K000520610
    Ching, Y.P. [S45950], Malaysia Daemonorops formicaria K000520623
    Bernstein, J. [487], Brunei Daemonorops formicaria K000520619

    First published in Phytotaxa 197(2): 143 (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