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  1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Areca L.
      1. Areca chaiana J.Dransf.

        This species is accepted, and its native range is Borneo (Sarawak).

    General Description
    Erect, solitary undergrowth palm. Stem to 2-5 m tall, c. 1-8 cm diam., internodes c. 1.7-2 cm, bearing caducous chocolate brown scales; nodal scars to 4 mm wide. Crownshaft well-defined, light greenish yellow when fresh, drying mid-brown, 27 x 3 cm; leaf sheaths neatly abscising, c. 17 cm long, longitudinally striate, bearing sparse, minute, brown scales; ligule to 3 cm, soon tattering. Leaf pinnate, excluding sheath to 85 cm, including petiole to 15 x 0.3 cm; leaflets about 10 on each side of the rachis, ± close, mostly 1-4 ribbed except for the broader terminal pair which may be 4-8 ribbed, con- colorous, drying greenish brown, proximal leaflets c. 26 x 2.3 cm, mid-leaf leaflets c. 36 x 0.7-2.5 cm, apical pair c. 20 x 2.5-5.5 cm, all acuminate except for apical leaflets which are lobed; minute scales abundant on both surfaces. Inflorescences infrafoliar, simply spicate, to c. 15 cm, arcuate; prophyll winged, (only fragments available); peduncle short c. 20 x 7 mm diam. (at insertion of prophyll) greenish cream when fresh, drying dark, bearing scattered pale scales, proximal c. 1/3 of axis bearing numerous spirally arranged triads, distal portion bearing spirally arranged, solitary or paired staminate flowers, subtended by relatively conspicuous triangular rachilla bracts c. 1 x 1 mm. Staminate flower rather irregularly flattened due to close packing; calyx base stipitate, c. 1 x 0.5 mm, flattened, glabrous; calyx lobes narrow-triangular, c. 2 x 0.5 mm, keeled, the margins minutely ciliate; petals variable, striate c. 9 x 2-3.5 mm; stamens 6, ± epipetalous, filaments c. 2 x 0.2 mm, anthers medifixed, ± divergent at tip and base, c. 5.5 x 0.5 mm, latrorse; pistillode absent. Pistillate flower sessile; sepals 3, ovate, imbricate, cucullate, minutely scaly, striate, c. 8 x 4 mm; petals 3, ovate, imbricate except at the very tip, minutely ciliate at margins, c. 7 X 3 mm; staminodes ?6, minute; ovary ± fusiform, c. 6 x 1.2 mm. Mature fruit ± fusiform and somewhat curved at the tip, c. 30 x 8 mm, with apical stigmatic residue c. 2 mm diam.; pericarp drying dull brown, longitudinally striate; seed basally attached filling a space c. 20 x 6 mm, shrinking to 12 x 5 mm.
    Near river bank on slope in open place. Altitude 2000 ft a.s.l.
    montana ad sectionem Microarecam ut videtur pertinens sed inflorescentia spicata basi triades numerosos con- gestosque ferenti, floribus staminatis complanatis petalis latis statim dis- tinguibilis.
    Borneo, Sarawak, 2nd Division, known only from the type



    Other Data

    Areca chaiana J.Dransf. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Chai, P. [S.33986], Malaysia K000208007 holotype


    First published in Kew Bull. 39: 10 (1984)

    Accepted by

    • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.


    Palmweb - Palms of the World Online

    • J. Dransfield, The genus Areca (Palmae: Arecoideae) in Borneo. 1984


    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.

    Palmweb - Palms of the World Online
    Palmweb 2011. Palmweb: Palms of the World Online. Published on the internet Accessed on 21/04/2013
    Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License