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

        This species is accepted, and its native range is S. India.

    [PW]
    General Description
    A thicket forming slender climber, stem clustering, with leafsheath to 3 cm in diameter exposed part of the stem to 2 cm in diameter. Leaves ecirrate 1.5 - 2 m or more long; leafsheath with flagellum and conspicuous knee, armed with scattered long and short broad-based spines intermingled with brownish toinentum; leaflets linear; lower leaflets sub-opposite; middle leaflets opposite and upper leaflets alternate; longest leaflets to 80 cm long, 2 cm broad at middle, conspicuously 3-nerved; midnerve bristly on lower side; rachis armed with 1 - 1.5 cm long broad-based straight spines. Male inflorescence flagelliform; partial inflorescences once or twice branched; each attached above the mouth of the respective primary bracts; axial part of inflorescence armed with paired or 3-nate reflexed claws; secondary bracts tubular, smooth on outer surface, obliquely truncate with lip-like projection on one side; rachillae alternate, arching, 9 mm to 5 cm long, attached at or slightly below the mouth of the respective cup-like basal bracts; in proximal rachillae male flowers are borne on glomerules, in the distal rachillae flowers are distichous. Female inflorescence with alternate simply branched partial inflorescences; partial inflorescence upto 1 m long, attached high above the mouth of the respective primary basal bracts; rachillae alternate, drooping, to 25 cm long, attached on cushion at the mouth of the respective cup-like basal bracts. Fruits globose, sub-globose, conical at upper part, 9-10mm x 5mm with a distinct base; fruit scales yellowish brown, in 18 longitudinal series, with chestnut brown anterior part, not channelled at middle, erosely toothed at margins; seed subglobose; endosperm homogeneous.
    Distribution
    INDIA (Tamil Nadu, Kerala). Endemic.
    Biology
    Grows in the moist hill forests of Western Ghats of Kanyakumari and Tirunelveli Districts of Tamil Nadu and Trivendrum, Thenmala, Ranni, Kottayam, Munnar, Malayattur, Trichur, Nemara and Nilambar forests of Kerala.

    Images

    Distribution

    Calamus hookerianus Becc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Wight, R. [1142], India K000687859 holotype

    First published in Ann. Roy. Bot. Gard. (Calcutta) 11(1): 226 (1908)

    Accepted by

    • Henderson, A. (2009). Palms of Southern Asia: 1-197. Princeton university press, Princeton and Oxford.
    • 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
    • S.K. Basu, Rattans (canes) in India. A Monographic Revision. 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