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

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

    elegantissima, rheophytica, in ripis fluminum rivulorumque per petras serpentinas fluentium crescens, ad sectionem Arecellam (sensu Furtado) pertinens, a ceteris speciebus Borneen- sibus habitatione et foliolis plicarum singularium approximatis compositis, regulatim dispositis bene distincta; staminibus 6 et habitu solitario A. hutchinsonianae et A. vidalianae insularum Philippinarum affinis et vero a formis A. vidalianae quae foliola plicarum singularium composita habent, haud disting- uibilis, sed floribus pistillatis angustissimis, caule glabrato, habitatione et aspectu differt.
    Growing as a rheophyte on the banks of fast-flowing rivers and streams in areas of ultrabasic rock, in the lowlands and up to about 400 m above sea level.
    General Description
    Solitary, short-stemmed, rheophytic, undergrowth palm, Stem to c. 2 m tall, usually less, 1-2 cm diam., pale brown except near the crownshaft where green, glabrous, internodes 2-4 cm, the nodal scars conspicuous c. 3-5 mm high. Crownshaft usually swollen, 15-30 x 2-4 cm, pale green. Leaves c. 7-8 in the crown; sheaths to 25 cm, usually less, smooth when fresh, drying ridged, bearing very sparse scattered scales; petiole 8-15 x 0.3-0.5 cm, channelled adaxially, rounded abaxially, bearing very sparse brown scales; leaflets 12-22 on each side of the rachis, dark green, close, regularly arranged, all single-fold except the apical pair and sometimes the basal pair which are 2-3-ribbed, concolorous, bearing very sparse, minute, brown scales scattered on both surfaces. Inflorescence erect at anthesis, to 22 cm, often less; prophyll to 25 x 3.5 cm, conspicuously winged, the wing margins somewhat erose and hairy towards the tip, the prophyll surface striate on drying, bearing scattered brown scales; peduncle 7-15 x 5 mm, winged at the very base; axis branching to 3 orders; rachillae slender, very numerous, to 120 x 1 mm, sometimes with a short bare portion at the base, usually with a basal triad, rarely with several triads, otherwise bearing paired staminate flowers in a single row on one side. Staminate flower narrow-ovoid, trigonous, creamy-white, citrus-scented; sepals 3, free, triangular, keeled, c. 0.8 x 0.4 mm; petals 3, striate, narrow-triangular, c. 2.2 x 0.7 mm; stamens 6, filaments very short, anthers elongate, c. 1.4 x 0.3 mm; pistillode trifid, conspicuous, exceeding the stamens, c. 1-8 X 0-3 mm. Pistillate flower at anthesis narrow, trigonous, c. 11 x 3 mm; sepals 3, free, imbricate, c. 7 x 4 mm; petals 3, exceeding the sepals, c. 10 x 6 mm, imbricate, with short triangular, valvate tips; ovary fusiform, c. 10 x 3 mm, tipped with 3 short stigmas. Fruit fusiform, pale green at first, at maturity becoming cherry-red, narrow-ellipsoidal, c. 20 x 7 mm; mesocarp becoming < 2-5 mm thick; seed fusiform, c. 15 x 5 mm.



    Other Data

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

    Date Reference Identified As Barcode Type Status
    Dransfield, J. [JD5780], Malaysia K000207997 holotype


    First published in Kew Bull. 39: 18 (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
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