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

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

    [PW]
    General Description
    Solitary or clustering rattan climbing to 7 m, rarely more, sometimes flowering when still ± stemless; stems without sheaths to c. 15 mm diam., with sheaths to c. 35 mm diam., internodes short, rarely more than 12 cm long. Sheaths bright green, armed with yellowish and blackish reflexed and upward-pointing spines arranged in partial or complete whorls, at least 1 whorl of spines being borne on a conspicuous pale green collar, pale brown indumentum abundant between and on the spines, spines around the sheath mouth ± erect, to 6 cm long, pale yellowish-green; knee absent or very poorly developed. Leaf to c. 2.5 m long including the petiole to c. 40 cm and cirrus to 1 m; cirrus sometimes very short or absent; leaflets c. 30 on each side of the rachis, subregular (rarely) or arranged in groups of up to 7, the longest to 40 × 2 cm. Inflorescences shorter than the leaves, up to c. 75 cm long; peduncle up to c. 20 cm long, usually unarmed; prophyll and primary bracts up to c. 25 cm long, dull brown, thin, bearing pale indumentum, tattering and soon falling, the prophyll usually bearing a few spine groups, otherwise the bracts usually unarmed; subsequent bracts not conspicuous; male rachillae rather short, to 2 cm long, bearing strictly distichous crowded flowers to 4 × 1 mm; female rachillae up to c. 9 cm long, bearing distichous but rather distant flower pairs, the female c. 5 × 2 mm. Mature fruit rounded, c. 20 mm diam., beaked, covered in 15-17 vertical rows of pale brown, sometimes dark-edged scales. Seed rounded, c. 15 mm diam.; endosperm ruminate. Seedling leaf not known. (Fig. 18).
    Distribution
    Widespread and common throughout Brunei. Also in Sarawak. Endemic to Borneo.

    Images

    Distribution

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

    Date Reference Identified As Barcode Type Status
    Apr 1, 2002 Jamree [73734], Malaysia Daemonorops collarifera K000030635
    Aug 17, 2000 Mohtar [65701], Malaysia Daemonorops collarifera K000113676
    Oct 21, 1997 Lee, B. [S54664], Malaysia Daemonorops collarifera K000520330
    Apr 20, 1996 Haron [S56485], Malaysia Daemonorops collarifera K000525129
    Jul 25, 1991 Yii, P.C. [S46269], Malaysia Daemonorops collarifera K000520319
    Jul 25, 1991 Banyeng [S43696], Malaysia Daemonorops collarifera K000520336
    Feb 22, 1989 Lee Meng Hock [S54185], Malaysia Daemonorops collarifera K000520334
    Oct 31, 1988 Ashton, P.S. [S22065], Malaysia Daemonorops collarifera K000520324
    Aug 20, 1987 Banyeng [S43697], Malaysia Daemonorops collarifera K000520338
    Aug 20, 1987 Mokhtar [S44834], Malaysia Daemonorops collarifera K000525135
    Jun 8, 1987 Lee Meng Hock [S53803], Malaysia Daemonorops collarifera K000520335
    Dec 19, 1985 Uhaedi, S. [IDRC010], Indonesia Daemonorops collarifera K000525131
    Aug 10, 1982 Dransfield, J. [JD6067], Malaysia Daemonorops collarifera K000525130
    Aug 10, 1982 Dransfield, J. [JD5982], Malaysia Daemonorops collarifera K000525128
    Aug 9, 1982 Moore, H.E. [9095], Malaysia Daemonorops collarifera K000520327
    Aug 9, 1982 Dransfield, J. [JD4645], Malaysia Daemonorops collarifera K000525133
    Aug 9, 1982 Beccari, O. [PB22], Malaysia Daemonorops collarifera K000207650 isotype
    May 9, 1981 Dransfield, J. [JD6034], Malaysia Daemonorops collarifera K000520331
    May 5, 1981 Dransfield, J. [JD5991], Malaysia Daemonorops collarifera K000525142
    Apr 9, 1981 Dransfield, J. [JD5874], Malaysia Daemonorops collarifera K000520332
    Apr 7, 1981 George, R. [S40318], Malaysia Daemonorops collarifera K000525139
    Jan 17, 1979 Tomlinson [4], Malaysia Daemonorops collarifera K000525134
    Jan 16, 1979 Chai, P. [S19459], Malaysia Daemonorops collarifera K000520317
    Jan 16, 1979 Chai, P. [S19459], Malaysia Daemonorops collarifera K000520318
    Jan 15, 1979 Morshidi [S24063], Malaysia Daemonorops collarifera K000520328
    Aug 17, 1978 Tong, S. [S37012], Malaysia Daemonorops collarifera K000520323
    Oct 29, 1977 Ismawi [S36497], Malaysia Daemonorops collarifera K000525140
    Oct 29, 1977 Ilias [S38464], Malaysia Daemonorops collarifera K000520325
    Mar 10, 1976 Ashton, P.S. [S17243], Malaysia Daemonorops collarifera K000520320
    Mar 10, 1976 Othman [S14393], Malaysia Daemonorops collarifera K000525137
    Mar 10, 1976 Banyeng [S24474], Malaysia Daemonorops collarifera K000520329
    Mar 10, 1976 Banyeng [S24466], Malaysia Daemonorops collarifera K000525138
    Mar 10, 1976 Kudi [S23697], Malaysia Daemonorops collarifera K000520326
    Mar 2, 1976 Ashton, P.S. [19516], Malaysia Daemonorops collarifera K000525145
    Nov 25, 1975 Jacobs [5658], Brunei Daemonorops collarifera K000520315
    Nov 25, 1975 Jacobs [5658], Brunei Daemonorops collarifera K000520316
    Nov 11, 1975 Paie [S19516], Malaysia Daemonorops collarifera K000525143
    Nov 11, 1975 Paie [S19516], Malaysia Daemonorops collarifera K000525144
    Aug 5, 1975 Dransfield, J. [JD4623], Malaysia Daemonorops collarifera K000525141
    Dec 1, 1964 Ashton, P.S. [S16552], Malaysia Daemonorops collarifera K000520321
    Dec 1, 1964 Ashton, P.S. [S16471], Malaysia Daemonorops collarifera K000525132
    Jan 7, 1964 Moore, H.E. Jr. [9119], Malaysia Daemonorops collarifera K000207649 topotype
    Ashton, P.S. [S.21574], Brunei Daemonorops collarifera K000525136
    Moore, H.E. [9123], Malaysia Daemonorops collarifera K000520337
    Dransfield, J. [JD4651], Malaysia Daemonorops collarifera K000520339
    Wong, K.M. [550], Brunei Daemonorops collarifera K000520333
    Lee, B. [S.54524], Malaysia Daemonorops collarifera K000520322
    Beccari, O. [22], Sarawak Daemonorops collarifera K000736137

    First published in Phytotaxa 197(2): 142 (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.
    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