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

        This species is accepted, and its native range is Nicobar Islands.

    [PW]
    Biology
    Not known.
    General Description
    Clustering, small diameter rattan. Stem yellowish green, with sheaths 7-14 mm in diameter. Sheath obliquely truncate at mouth, scurfy outside, armed with numerous spines, spines, 1-2.5 cm long, dimorphic, flattened spines intermingled with broad-based deflexed spines: flagellum filiform; knee conspicuous; ocrea very short, truncate, smooth outside: leaflets equidistant, linear, subulately acuminate, with conspicuous upper midnerve, bristly on both sides, lateral nerves smooth, middle leaflets 18-25 cm long, 10 - 12 mm broad at middle. Fertile parts unknown.
    Distribution
    Great Nicobar Islands ( Endemic).
    Vernacular
    Dahya.
    [PW]
    Distribution
    Evergreen forests at Great Nicobar. (Map. 7).
    Biology
    Flowering November - December. Fruiting April - May.
    General Description
    Clustering, medium diameter rattans. Stem to 30 m long, with sheaths 1-1.25 cm in diameter, without sheaths 0.5-1.3 cm. Leaf 1 m long, ecirrate; sheath green, densely spiny; spines 0.8 cm long, persistent, dimorphic with broad-based, triangular-acute and slender, bristly spines interspersed, the latter shedding off at a later stage; knee present; ocrea not seen; petiole absent; rachis triangular, spiny; leaflets ca. 45 x 2 cm, gradually becoming smaller towards the tip, terminal pair confluent, regular, linear lanceolate spinulose at margin, midvein spiny. Inflorescence, male inflorescence not seen; female inflorescence long flagellate; primary sheath tubular; partial inflorescence to 60 cm long; secondary sheaths tubular; rachilla to 13 cm long; involucre cup shaped: fruiting perianth 0.3 cm long. Fruit ovoid, ca. 1.5 x 1 cm, scales in 21 vertical rows, shiny yellow, turning violet on ripening, deeply channelled in the middle; endosperm not ruminate.

    Images

    Distribution

    Native to:

    Nicobar Is.

    Calamus nicobaricus Becc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    s.coll. [s.n.], India Calamus pseudorivalis K000697995 isotype

    First published in J.D.Hooker, Fl. Brit. India 6: 446 (1892)

    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.

    Not accepted by

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

    Literature

    Palmweb - Palms of the World Online
    • C. Renuka, A Manual of the Rattans of Andaman and Nicobar Islands. 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.
    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