1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus usitatus Blanco

        This species is accepted, and its native range is NE. Borneo, Philippines, NE. Sulawesi, Maluku (Buru).

    [PW]
    Distribution
    In Sabah known from a few collections from Lahad Datu, Semporna, and Tawau Districts, apparently always coastal. Elsewhere widespread in the Philippines.
    General Description
    Slender to moderate clustering, thicket-forming rattan with stems to rarely more. Stem without sheaths to 5-10 mm, with sheaths 10-23 mm; intei to 15 cm; sheaths bright green, very sparsely to densely armed with scattered golden brown to 45 mm, and caducous pale grey indumentum; sometimes main body of she unarmed, but even when so, spines present around leaf sheath mouth; spines aroui sheath mouth ± erect, much larger than the rest, borne close together in a neat row, the Ic to 12 cm. Knee conspicuous. Ocrea to 5 mm, very densely armed with minute spiculez m or spines to 3 mm. Flagellum to 1.5 m. Leaf ecirrate to 90 cm, frequently less, including petiole to 20 cm; petiole armed with few horizontal golden brown spines; leaflets c 30 on each side of the rachis, close, regular, (in Sabah; most Philippine populations have grouped leaflets), the largest to 30 x 1.4 cm armed with black bristles along margins, 3 main veins on upper surface, and midrib beneath. Male and female inflorescences superficially similar, to 2 m?with 5 or more partial inflorescences; bracts on main axis close tubular, variously armed with golden brown spines but always with apical tufts of erect slender spines to 20 mm; partial inflorescences to 40 cm, with curving axes and curved rachillae; male rachilla to 40 x 2 mm; female rachilla to 50 x 3 mm. Mature fruit ovoid, c 8 x 6 mm, with a short beak to 1 mm, and covered in 18 vertical rows of straw-coloured scales. Seed c 6 x 4 mm. Endosperm apparently homogeneous. Seedling leaf unknown. (Fig. 83)
    [PW]
    Use
    Tying purposes, baskets, fish traps; apparently fairly durable.

    Images

    Distribution

    Native to:

    Borneo, Maluku, Philippines, Sulawesi

    Calamus usitatus Blanco appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 3, 1996 Harvey [A147], Malaysia K000462195
    Mar 27, 1986 Fernando, E. [EF478], Philippines K000462214
    Dec 6, 1985 Madulid, D.A. [F1026], Philippines K000462212
    Sep 27, 1983 Fernando, E. [159], Philippines K000462215
    Sep 27, 1983 Baja-Lapis, A. [086], Philippines K000462219
    Nov 21, 1980 Dransfield, J. [JD5853], Malaysia K000113853
    Nov 1, 1980 Dransfield, J. [JD5499], Philippines K000462216
    Nov 1, 1980 Ramos [BS22455], Philippines K000462204
    Nov 1, 1980 Ramos [BS22455], Philippines K000462205
    Nov 1, 1980 Ramos [BS22455], Philippines K000462206
    Nov 1, 1980 Loher, A. [1376], Philippines K000462323
    Nov 1, 1980 Loher, A. [7080], Philippines K000462325
    Nov 1, 1980 Loher, A. [7081], Philippines K000462327
    Nov 1, 1980 Loher, A. [1361], Philippines K000462329
    Nov 1, 1980 Loher, A. [1372], Philippines K000462330
    Nov 1, 1980 Loher, A. [1367], Philippines K000462332
    Nov 1, 1980 Loher, A. [7080], Philippines K000462326
    Nov 1, 1980 Loher, A. [7081], Philippines K000462328
    Nov 1, 1980 Loher, A. [1372], Philippines K000462331
    Nov 1, 1980 Loher, A. [1367], Philippines K000462333
    Nov 1, 1980 Cuming [1478], Philippines K000462209
    Nov 1, 1980 Cuming [1478], Philippines K000462210
    Nov 1, 1980 Merrill [791], Philippines K000462202
    Nov 1, 1980 Merrill [682], Philippines K000462203
    Nov 1, 1980 Elmer, A.D.E. [7282], Philippines K000462201
    Nov 1, 1980 Elmer, A.D.E. [12607], Philippines K000462207
    Nov 1, 1980 Elmer, A.D.E. [17052], Philippines K000462208
    Nov 1, 1980 Elmer, A.D.E. [11969], Philippines K000462217
    Nov 1, 1980 Borden, T.E. [FB2481], Philippines K000462218
    Nov 1, 1980 Vidal, S. [1939], Philippines K000462334
    Nov 1, 1980 Curran, H.M. [3613], Philippines K000462324
    Nov 1, 1980 Keith [4962], Malaysia K000113855
    Nov 1, 1980 Keith [9359], Malaysia K000462196
    Nov 1, 1980 Furtado, C.X. [SFN30924], Indonesia K000462237
    Nov 1, 1980 Furtado, C.X. [SFN30837], Indonesia K000462238
    Nov 1, 1980 Cuadra [A2487], Malaysia K000462194
    Nov 1, 1980 Cuadra [A2454], Malaysia K000462197
    Jul 17, 1975 Bartlett [15173], Philippines K000462220
    Baker, W.J. [564], Malaysia K000462236
    Cuming [1225], Philippines K000462198
    Cuming [1225], Philippines K000462199
    Cuming [1225], Philippines K000462200
    Madani, L. [SAN90794], Malaysia K000113854
    Fernando, E. [EF712], Philippines K000462211
    Fernando, E. [EF401], Philippines K000462213

    First published in Fl. Filip.: 265 (1837)

    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.

    Literature

    Palmweb - Palms of the World Online
    • J. Dransfield, The Rattans of Sabah. Sabah Forest Records 13.. 1984

    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.

    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