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

        This species is accepted, and its native range is N. Borneo to Sulawesi.

    [PW]
    Vernacular
    rotan batu
    General Description
    Solitary or clustering robust rattan with stems climbing to 40 m or more; stem without sheaths 18-30 mm, with sheaths to 50 mm; internodes to 20 cm; stem surface smooth, yellowish, very even. Sheaths dull green with thin to abundant greyish indumentum, unarmed or very sparsely armed or densely armed with scattered horizontal fine black spines to 15 x 1 mm with pale swollen bases. Knee conspicuously unarmed. Ocrea forming a low ridge to 5 mm. Leaf cirrate, to 4 m including cirrus to 2 m, and petiole; petiole short in mature climbing stems, c 10 cm, longer in juveniles semicircular in cross section, the upper surface unarmed to densely armed with erect rigid black spines to 10 mm, the margins and mid line of lower surface also sometimes armed; leaflets c 25 on each side, regularly arranged ± pendulous when exposed, rather stiff, broadly lanceolate, the longest to 40 x 6.5 cm, rather conspicuously armed with black spines to 3 mm along the main veins on the upper surface and margins, especially near the tip, unarmed on the lower surface; transverse veinlets moderately conspicuous. Male and female inflorescences superficially similar, without terminal flagella, arching, to c 1 m with c 5 partial inflorescences, in the male branching to 2 orders, in the female to 1 order; male rachillae more crowded than in female, to 4Q x 1.5 mm, bearing distichous flowers; female rachillae to 120 x 3 mm, bearing rather distant flowers. Mature fruit rounded c 10 mm diam., tipped with a beak to 1x1 mm, and covered in 15 vertical rows of pale greenish to ivory scales with pale brown margins. Seed c 7x6x5, deeply pitted, the pits penetrating the endosperm, which is thus subruminate. Seedling leaf forked. (Fig. 43)
    Distribution
    Confined to offshore islands and dry coastal hills, except for a few records from swampy village margins near the coast; not recorded outside Sabah, but closely related if not conspecific rattans occur in Palawan and elsewhere in the Philippines. Endemic.
    [PW]
    Use
    The best large diameter rattan native to Sabah. Were the stems of greater diameter, this would rival rotan manau (Calamus manan). Certainly a species of great economic potential, and one which requires urgent silvicultural assessment. Present stocks are limited and their exploitation requires strict control.

    Images

    Distribution

    Native to:

    Borneo, Philippines, Sulawesi

    Calamus moseleyanus Becc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Moseley, H.N. [s.n.], Philippines K000207821 holotype
    Moseley, H.N. [s.n.], Philippines K000208137 holotype
    Elmer, A.D.E. [11886], Philippines K000687914
    Aug 5, 1995 de Vogel, E. [5334], Indonesia Calamus multinervis K000521279
    Oct 3, 2008 Clayton, L. [20], Indonesia Calamus mindorensis K000030622
    McGregor, R.C. [309], Philippines Calamus mindorensis K000207822 Unknown type material
    McGregor, R.C. [309], Philippines Calamus mindorensis K000207823 Unknown type material
    Jul 17, 2007 Baja-Lapis, A. [599], Philippines Calamus subinermis K000462809
    Aug 16, 2002 Mogea, J.P. [5390], Indonesia Calamus subinermis K000030621
    Aug 5, 1995 Mogea, J.P. [5035], Indonesia Calamus subinermis K000521364
    Aug 5, 1995 Dransfield, J. [J.D.3721], Indonesia Calamus subinermis K000521370
    Aug 5, 1995 Dransfield, J. [J.D.3781], Indonesia Calamus subinermis K000521371
    Aug 5, 1995 Dransfield, J. [J.D.3720], Indonesia Calamus subinermis K000521372
    Dec 11, 1979 KPD Markiras Rattan Corp [A], Malaysia Calamus subinermis K000521369
    Dec 11, 1979 KPD Markiras Rattan Corp [B], Malaysia Calamus subinermis K000521365
    Oct 31, 1979 Dransfield, J. [JD5835], Malaysia Calamus subinermis K000521368
    Sep 19, 1979 Dransfield, J. [JD5665], Malaysia Calamus subinermis K000521375
    Sep 18, 1979 Dransfield, J. [JD5663], Malaysia Calamus subinermis K000521367
    Sep 18, 1979 Dransfield, J. [JD5664], Malaysia Calamus subinermis K000521373
    Apr 26, 1979 Dransfield, J. [JD5502], Malaysia Calamus subinermis K000521379
    Feb 22, 1979 Madani, L. [SAN89957], Malaysia Calamus subinermis K000521366
    Apr 30, 1975 Puasa [7435], Malaysia Calamus subinermis K000521377
    Baker, W.J. [1007] Calamus subinermis K000114524
    Anonymous [Cytology97-11] Calamus subinermis K000462444
    Dewol [SAN89985], Malaysia Calamus subinermis K000521376
    Aban [SAN93031], Malaysia Calamus subinermis K000521374
    Low [36], Borneo Calamus subinermis K000208131 holotype
    Low [36], Borneo Calamus subinermis K000208130 holotype
    Philip [SAN89984], Malaysia Calamus subinermis K000521378
    Baja-Lapis, A. [358], Philippines Calamus subinermis K000462818

    First published in Rec. Bot. Surv. India 2: 211 (1902)

    Accepted by

    • Baja-Lapis, A.C. (2010). A Field Guide to Philippine Rattans: 1-214. Asia Life Sciences, Laguna, Philippines.
    • 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.

    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