1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus micranthus Blume

        This species is accepted, and its native range is S. Myanmar to Sumatera, Borneo (W. Sarawak).

    [PW]
    General Description
    Variable slender clustering rattan climbing to 15 m tall. Stem without sheaths to 8 mm in diameter with internodes to 25 cm, with sheaths to 2 cm in diameter. All parts turning dark on drying. Leaf sheath bright to dull or dark green armed with rather regular broadly triangular reflexed spines to 1 cm long by 8 mm wide, with broad somewhat bulbous bases, the bases sometimes ± confluent, indumentum lacking in old sheaths. Ocrea poorly developed. Knee conspicuous. Flagellum to 1.5 m long. Leaf ecirrate, to 1.25 m long bearing regular narrow to broad distant or close leaflets, 12 to 50 on each side, leaflets 20 cm long by 1 cm wide to 30 by 2.5 cm wide. Inflorescence to about 75 cm long with up to 5 partial inflorescences to 25 cm long; all bracts rather distantly and regular armed with reflexed spines. Mature fruit rounded or somewhat oblong, to about 1 cm long by 7.5 mm wide, shortly beaked, covered in 15-17 vertical rows of dull yellowish brown scales. Seed about 7 mm long by 5 mm wide, rather deeply sinuous grooved. Endosperm very shallowly ruminate. Seedling leaf unknown. I
    Vernacular
    rotan kerai
    Distribution
    Kelantan, Perak, Pahang, Trengganu, Selangor, Negri Sembilan, Johore, Singapore. Endemic.
    [PW]
    Distribution
    Trengganu, Selangor, Pahang, Johore, Negri Sembilan, Malacca: Endemic.
    General Description
    Clustering moderate sized rattan with stems climbing to 25 m tall. Stem without sheaths to 1.2 cm in diameter, with sheaths to 2.2 cm in diameter, with internodes to 30 cm long, usually shorter on mature stems. All parts drying dull dirty blackish. Sheaths rick dark green variable in armature, varying from unarmed to sparsely armed with dark green spines to 2 cm long to densely armed with bulbous-based reflexed spines to 1 cm long, the bulbous bases frequently confluent. Flagellum to 2 m long. Ocrea inconspicuous. Knee well-developed. Young leaf flushed pinkish. Leaf ecirrate, usually with petiole not exceeding 5 cm, to 1 m in all with up to about 10 broad cucculate dull dark green leaflets on either side, the terminal two slightly joined below, ± unarmed, the longest to about 35 cm long by 7 cm wide. Juvenile leaves with straw-coloured petiole spines. Inflorescences male and female superficially similar, to 2 m long bearing up to 12 partial inflorescences to 60 cm long. Partial inflorescences bearing up to 12 rachillae on each side, male rachillae to 4 cm long, female to 10 cm. Ripe fruit rounded, to about 1 cm in diameter very shortly beaked with the stigmatic remains (c. 1 mm high), covered in 15-18 vertical rows of pale dull green scales (drying mid-brown). Seed about 7 mm in diameter, slightly pitted. Endosperm ± homogeneous. Seedling leaf bifid.
    Vernacular
    rotan sega badak
    [PW]
    Use
    Moderate quality rattan (5 -10 mm) apparently rarely long enough to be utilized extensively.
    [PW]
    Use
    Produces a good cane of appearance very similar to that of rotan sega - possibly it is mixed with sega in commerce.

    Images

    Distribution

    Native to:

    Borneo, Malaya, Myanmar, Sumatera, Thailand

    Calamus micranthus Blume appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 19, 1985 Uhaedi, S. [IDRC18], Indonesia K000521196
    Jul 31, 1978 Dransfield, J. [3419], Indonesia K000521194
    Jul 31, 1978 Dransfield, J. [J.D.4155], Indonesia K000521195
    Jul 31, 1978 Dransfield, J. [4093], Indonesia K000521197
    Feb 1, 1978 Dransfield, J. [2574], Indonesia K000521193
    Mar 14, 1934 Nur [SFN 12188], Peninsular Malaysia Calamus luridus K000207728 isotype
    Ridley, H.N. [9207], Peninsular Malaysia Calamus luridus K000207727
    Holttum, R.E. [10670], Peninsular Malaysia Calamus luridus K000207729 isotype
    Kunstler, H. [6400], Peninsular Malaysia Calamus luridus K000207725 isotype
    Kunstler, H. [6284], Peninsular Malaysia Calamus luridus K000207726 isotype
    Sep 5, 1942 Corner, E.J.H. [30464], Peninsular Malaysia Calamus speciosissimus K000207769 holotype
    Sep 5, 1942 Corner, E.J.H. [30464], Peninsular Malaysia Calamus speciosissimus K000207770 holotype

    First published in Rumphia 3: 53 (1847)

    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

    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