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  1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Areca L.
      1. Areca tunku J.Dransf. & C.K.Lim

        This species is accepted, and its native range is Peninsula Thailand to Sumatera.

    [PW]
    Distribution
    Sumatra (Sumatera Utara) and Peninsular Malaysia.
    Diagnostic
    Ad sectionem Arecellam H. A. Wendl. & Drude pertinens, a ceteris speciebus Sumatranis vel Malayanis Arecae petiolo carenti et rachillis crassis purpureis bene distincta; A. jugahpunya J. Dransf. et A. ahmadii J. Dransf. speciebus borneensibus affinis sed a A. jugahpunya inflorescentia rachillis paucioribus minoribus petalis floris masculi non connatis et a A. ahrnadii habitu caulescenti et inflorescentia infrafoliacea pedunculo brevi distincta.
    General Description
    Solitary, unarmed, monoecious palm to 2.5 m tall. Stem often stilt-rooted at the base, dull green when young, becoming pale brown, 2-6 cm diam., internodes 2- 3 cm, nodal scars ca. 0.5 cm wide. Crown composed of ca. 8 leaves, these sometimes tardily abscissing the whole crown tending io trap leaf litter. Crownshaft to 13-25 cm long, 3-7 cm diam., often partially obscured by the marcescent leaf sheaths. Leaf variably dissected leaf sheaths l3- 20 cm long, dull green to brown, often tinged purple, drying pale brown, striate, bearing thin pale brown scalesi petiole absent to very short, not exceeding 5 cm long; rachis to 1 m long, adaxially channelled near the base, abaxially rounded or angled, pale brownish green, sometimes tinged purple; blade irregularly dissected, leaflets adaxially dark shiny green, slightly paler abaxially, usually borne close together, 5-24 on each side of the rachis, varying from narrow to broad, 22-65 x 0.7-10 cm, composedo f l-6 folds,a cuminate and somewhat sigmoid except for the terminal shallowlyJobed pair, main veins bearing minute brown punctiform scales. Inflorescence sometimes burstine throughm arcescenst heathse. rect, 8.5: 22 cm, almost always branching to I order only, very rarely the basalmost branch bearing a branch of the second order, all axes cream-colored, turning yellowish orange, greenish or deep purple; prophyll 8-22 x 2.5-4 cm, ancipitous, ellipticlanceolate, winged throughout, creamy brown to pale green, tinged with carmine purple, becoming striate on drfng, bearing bands of scattered pale brown scales peduncle 20-30 x 7-10 x 5 mm glabrous, bearing an inconspicuous, incomplete, low ridgeJike peduncular bract ca. I mm high, just above the prophyll scar; rachis to 7 cm long; rachillae 6-12, very stiff and stout. borne in two neat rows on either side ofthe rachis, congested at first, later often widely spreading, 5- I 2 x 0.2- 0.4 cm, sometimes slightly curved, bearing flowers only along one side (the distal side); triads borne only at the very base of the rachillae, l-6 per rachilla, rarely absent, distally the rachillae bearing paired or solitary staminatef lowersoth e flowers creamcolored or greenish tinged, often markedly contrasting with the purplish rachillae. Staminate flowers terete, ca. 4-10 x 1.5-2 mm; calyx cup-shaped, sometimes strongly explanate, to 0.75 mm high, three-lobed, the lobes triangular to I x I mm; petals 3, distinct, 4.5-10 x L.5-2.5, abaxially slightly striate; stamens 6, filaments 0.75- 1.5 mm, anthers 2.5-5.5 x I mm, apically and basally sagittate; pollen monosulcate with finely punctate tectate exine; pistillode minute. Pistillate flowers at anthesis cream-colored, borne on enlarged rachillae; buds varying greatly in size depending on stage of development, just before anthesis to 19 x 9 mm; sepals 3, strongly imbricate, irregularly ovate l0 x 9 mm; petals 3, basally strongly imbricate l0 x 9 mm, with triangular valvate tips to 5 x 5 mm; staminodes 3, irregularly dentiform to strap-shaped; ovary ovoid 14 x 4 mm, stigmas3 , strongly adpressedin bud, expanding and becoming reflexed at anthesis, white, fleshy, triangular ca. 5 x 5 mm. Fruit borne on the enlarged, dark brown or blackened rachillae, up to about 12 fruits developing on a single inflorescence; mature fruit 3-4.5 x 1.5-3 cm, dull purplish green to brown, with blackened stigmatic remains borne on a white ringed beak to 12 x 6 mm; epicarp smooth, becoming striate on dryng; mesocarp thin, pale,i nner fiberso f mesocarpb road,b lack, conspicuous, closely adhering to the endocarp; endocarp thin, closely adhering to the seed. Seed to 25 x l5 mm; endosperm deeply ruminate, embryo basal. Seedling leaf bifid.

    Images

    Distribution

    Native to:

    Malaya, Sumatera, Thailand

    Synonyms

    Other Data

    Areca tunku J.Dransf. & C.K.Lim appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jul 16, 1994 Dransfield, J. [JD5178], Peninsular Malaysia K000208016 holotype

    Bibliography

    First published in Principes 36: 81 (1992)

    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.
    • Pooma, R. (ed.) (2005). A preliminary check-list of threatened plants in Thailand: 1-193. National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    Palmweb - Palms of the World Online

    • J. Dransfield & C. K. Lim, A new species of Areca from Peninsular Malaysia and Sumatra. 1992

    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 2020. 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 2020. 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