1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus spectatissimus Furtado

        This species is accepted, and its native range is S. Peninsula Thailand to W. Malesia.

    [PW]
    Vernacular
    rotan semut (c.f. Furtado 1956 but this name normally applied to species of Korthalsia).
    Distribution
    Perak (Kroh - 1 collection). Sumatra (Komering Ulu - 1 collection). Borneo (Kalimantan Timur, near Balikpapan - 1 collection).
    General Description
    Clustering high climbing moderate sized rattan with stems to 20 m tall. Stems without sheaths about 1 cm in diameter, with sheaths to 1.7 cm. Internodes to 40 cm long. Sheaths dull green, rather densely armed with dull green swollen based spines of variable length, the longest to 1.5 cm long, horizontal or slightly reflexed. Ocrea obscure. Knee well developed. Flagellum to 1.5 m. Leaf ecirrate to 1 m long including petiole to 30 cm long; petiole armed with scattered spines below. Leaflets about 40 on each side of the rachis, close and regular, the longest to 35 cm long by 1.5 cm wide, ± unarmed above, but densely armed with short bristles beneath. Inflorescence male and female similar, both generally not much longer than the leaves, often much shorter, with 3-6 partial inflorescences. Subtended by rather wide loose bracts. Partial inflorescences with rather crowded rachillae bearing relatively very large flowers to 1 cm long. Ripe fruit about 2 cm in diameter rounded, covered in dark chestnut brown non-channelled shiny scales. Seedling leaf unknown.

    Images

    Distribution

    Native to:

    Borneo, Malaya, Sumatera, Thailand

    Calamus spectatissimus Furtado appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 24, 1942 Furtado, C.X. [33007], Peninsular Malaysia K000207768 isotype
    Saw Leng Guan [FRI44286], Malaysia K000525893
    Furtado, C.X. [33007], Peninsular Malaysia K000207767 isotype

    First published in Gard. Bull. Singapore 15: 64 (1956)

    Accepted by

    • Barfod, A.S. & Dransfield, J. (2013). Flora of Thailand 11(3): 323-498. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • 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
    • J. Dransfield, A Manual of the rattans of the Malay Peninsula. Malayan Forest Recirds 29.. 1979

    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