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

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

    [PW]
    Distribution
    Found scattered throughout Brunei, but always rare. Elsewhere in Sabah and Sarawak. Endemic.
    General Description
    Clustering, very slender rattan climbing to 10 m; stem without sheaths to 8 mm diam. (usually less), with sheaths to 12 mm diam., internodes 5-12 cm long. Sheaths dark green, ± unarmed or armed with scattered short bulbous-based spines to 4 mm, sparse deciduous brown indumentum sometimes present; knee conspicuous; ocrea inconspicuous. Flagellum to 1.5 m. Leaf ecirrate to c. 60 cm including petiole to 25 cm; petiole sparsely armed with reflexed spines; leaflets 3-4 (rarely 5) on each side of the rachis, the apical two close together, the proximal 1 or 2 close together but distant from the apical, lanceolate to spathulate, usually ± cucullate and with a pronounced drip-tip, rarely linear and lacking a drip-tip, the longest to 30 × 3.5 cm, the apical pair fused for up to 1/2 their length, dull green, ± unarmed. Inflorescences shorter than the leaves, without terminal flagellum, rarely exceeding 40 cm; partial inflorescences up to 5, each subtended by a loosely tubular, rather conspicuously bulbous-spiny bract, the male branching to 3 orders, the female to 2, the rachillae very short, somewhat condensed, the bracteoles forming rather large cups. Mature fruit usually 2-3 only per infructescence, large, rounded, c. 20 mm diam., tipped with a conical beak and covered in 16 vertical rows of smooth unchannelled pale brown scales with darker tips. Seed irregularly globular, acutely angled, 10-12 mm diam.; endosperm homogeneous. Seedling leaf not known. (Fig. 47).
    [PW]
    Use
    Not known, though the fruit contains a thick sweet sarcotesta, good to eat.

    Distribution

    Calamus gonospermus Becc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 14, 2005 Watanabe, N.M. [NMW37], Brunei K000209426
    Jun 28, 1996 Wong, K.M. [WKM490], Brunei K000113360
    May 16, 1994 Van Valkenburg [1194], Indonesia K000113362
    Dec 15, 1993 Soibeh [424], Malaysia K000113365
    Jan 1, 1992 Stockdale, M.C. [MCS58], Brunei K000113361
    Mar 6, 1990 Dransfield, J. [JD6613], Brunei K000113359
    Feb 28, 1990 Dransfield, J. [JD6528], Brunei K000113358
    Feb 1, 1989 Lee [S52566], Malaysia K000113372
    Feb 1, 1989 Awa [S47571], Malaysia K000113344
    Aug 3, 1982 Dransfield, J. [JD5999], Malaysia K000113370
    Aug 3, 1982 Dransfield, J. [JD6031], Malaysia K000113376
    Aug 3, 1982 Dransfield, J. [JD5998], Malaysia K000113369
    May 27, 1980 Dransfield, J. [JD5616], Malaysia K000113357
    Aug 22, 1978 Dransfield, J. [JD5349], Malaysia K000113373
    Aug 22, 1978 Dransfield, J. [JD5293], Malaysia K000113371
    Dec 31, 1976 Dransfield, J. [JD4631], Malaysia K000113374
    Dransfield, J. [JD5580], Malaysia K000113375
    Dransfield, J. [JD5986], Malaysia K000113368
    Dransfield, J. [JD6107], Malaysia K000113366
    Dransfield, J. [JD6089], Malaysia K000113377
    Sundaling [SAN129572], Malaysia K000113345
    Sundaling [SAN124751], Malaysia K000113367
    Van Valkenburg [1404], Indonesia K000113363
    Soibeh [728], Malaysia K000113364

    First published in Rec. Bot. Surv. India 2: 202 (1902)

    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 & H. Beentje, The Palms of Madagascar. 1995

    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