1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus baratangensis Renuka & Vijayak.

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

    [PW]
    General Description
    Clustering, medium diameter rattan. Stem 25 m long or more, with sheaths 2 cm in diameter, without sheaths 1.2 cm. Leaf 1 m long, ecirrate; sheath green, spiny or glabrous, spines when present brown or black.flat, short on the younger sheaths, to 2cm long on mature sheath; knee prominent: ocrea slightly developed, petiole 14 cm long, margins armed with small spines; spines 0.3 cm long: rachis with a raw of small spines underneath, spines 0.5 cm long; leaflets 30-56 x 2.5 - 4 cm gradually becoming smaller towards the tip, basal part of the terminal pair united, dark green, linear lanceolate, regular, midvein prominent. Male inflorescence long flagellate, primary sheath tightly sheathing; partial inflorescence to 55 cm long; secondary sheath funnel-shaped; rachilla 7 cm long. Female inflorescence long flagellate, primary sheath tightly sheathing, spiny along the sides; partial inflorescence 55 cm long; secondary sheath tightly sheathing; rachilla 7 cm long, decrease in length distally; involucre cup shaped; fruiting perianth 0.4 cm long. Fruits ovoid, ca. 1.25 x 0.9 cm, scales in 21 vertical rows, green when young, turns gray white on maturation, light violet on ripening, channelled at the middle: endosperm not ruminate.
    Biology
    Flowering November-December. Fruiting April - May.
    Distribution
    In evergreen forests of Andamans (Map. 5) Very common in Baratang island.
    Vernacular
    Malay beth, Razi beth
    [PW]
    General Description
    Clustering, medium diameter rattan. Stem 20 m long, with sheaths 3 cm in diameter, without sheaths 1.5 cm. Leaf 1 m long with vestigial cirrus: sheath dark green, flagellate, spiny, spines to 1 cm long, interspersed with smaller ones: knee prominent; ocrea slightly developed, petiole absent; rachis triangular towards the distal end, spiny towards the base, spines straight, recurved on the adaxial side, leaflets regular, ca. 56 x 4 cm, apical leaflet ca. 19.5 x 2.2 cm, linear lanceolate, tip, margins and midrib ciliate. Inflorescence long flagellate; primary sheaths tightly sheathing, armed with downwardly directed spines to 0.5 cm long; partial inflorescence 27 cm long; secondary sheaths 2 cm long, funnel shaped; rachillae upto 5 cm long, decreasing in length distally; involucre cup-shaped. Fruit ovoid, ca. 1.5 x 1 cm; scales in 15 vertical rows, brown with a dark brown border, deeply channelled in the middle; endosperm ruminate.
    Distribution
    Common in the evergreen forests of Little Andamans (Map. 6).
    Vernacular
    Safed beth
    Biology
    Flowering not known. Fruiting April - May.
    [PW]
    Use
    Used in furniture industry and for tying rafts.

    Distribution

    Native to:

    Andaman Is.

    Calamus baratangensis Renuka & Vijayak. appears in other Kew resources:

    First published in Rheedea 4: 141 (1994)

    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
    • C. Renuka, A Manual of the Rattans of Andaman and Nicobar Islands. 1995

    Sources

    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