1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus rheedei Griff.

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

    [PW]
    Biology
    Infrequent in the moist forests of Western Ghats.
    General Description
    A slender climber; stem cluster-forming, with leaf sheath 11-13 mm in diameter. Leaves ecirrate, to 80 cm long; leafsheath with inconspicuous knee, armed with 1 - 1.5 cm long, straight spines and small spicules; ocrea with upwardly projecting brown bristles; petiole about 7 cm long, slender, armed a little above the base with small scattered spines; leaflets in groups of four, each pointing to different angles, with long vacant space in between the groups, narrowly lanceolate, 1 -nerved, to 13 cm long, 1.5 - 2 cm broad at middle. Male inflorescence flagelliform, 1 m or more long, with 4 - 6 paniculately branched partial inflorescences; each arising from the base of the laminar part of the respective bracts; peduncular part of partial inflorescence completely enclosed within the tubular part of the bracts; rachillae to 2 cm long, with 8-10 male flowers in each rachilla. Female inflorescence leaf-opposite, elongate in its axial part, with 5 - 8 cm long partial inflorescences attached above the mouth of the respective bracts; rachillae with basal callus, 3 - 5 cm long. Fruit ovoid, stalked, shortly beaked, 1.3 cm in diameter; fruit scales flattened, with brown outer margins. Seed not examined.
    Distribution
    NDIA (Kerala, Kamataka). Endemic.
    [PW]
    Biology
    Grows in the forest undergrowth or on partially cleared forest patches.
    Distribution
    INDIA (Kerala, Tamil Nadu). Endemic.
    General Description
    A thicket-forming climber; stem slender to 10 m long, with leafsheath 8-10 mm in diameter, without leafsheath 5-7 mm in diameter; internodes up to 20 cm long. Leaves ecirrate, to 50 cm long; leafsheath without knee, armed with to 5 mm long, straight spines; ocrea distinct, thin, upper margins bristly; petiole armed with a few longer spines along the margins; leaflets 20 - 30 in number in one leaf; in opposite groups of 2 - 5 leaflets in each group, deflected from the rachis in one plane, not pointed to different direction, narrowly oblanceolate, to 18 cm long, 10 - 15 mm broad at middle. Inflorescence flagelliform, slender, axial portion aculeate; primary bract longer than smaller partial inflorescences, enclosing the fertile parts completely until splitting longitudinally; male rachillae 7 - 8 mm long, delicate, sinuous, with 7-8 distichous flowers; female partial inflorescences 7 - 10 cm long, shorter than bracts; female rachillae simple, zig-zag, 12 - 15 mm long, with 3-4 distinct female flowers on each side; involucrophorum shortly pedicelliform, conspicuous in infructescence. Fruit globose, mucronulate, 8-10 mm long; fruit scales with deep brown margins, faintly channelled at middle. Seed not examined.
    [PW]
    Use
    It is reported that powdered dried seeds have a healing effect against ulcers.
    [PW]
    Use
    The thin and delicate cane has no commercial value. Its local uses are unknown. It is reported that tender leaves are used for treating dyspepsia, biliousness and ear trouble and is considered as anthelmintic.

    Images

    Distribution

    Calamus rheedei Griff. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    s.coll. [291], India Calamus travancoricus K000697987 holotype
    s.coll. [291], India Calamus travancoricus K000697988 holotype

    First published in Calcutta J. Nat. Hist. 5: 73 (1845)

    Accepted by

    • Sreekumar, V.B. & Henderson, A. (2014). Nomenclatural notes on Indian Calamus (Arecaceae) Phytotaxa 166: 145-149.
    • 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