1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Roystonea O.F.Cook
      1. Roystonea altissima (Mill.) H.E.Moore

        This species is accepted, and its native range is Jamaica.

    [PW]

    ,,http://www.palmweb.org/?q=cdm_dataportal/reference/5eaee0f7-c1b9-4c95-874b-35821d2193ea,

    General Description
    Trunk gray-brown, to 20 m tall, 25.5-35 cm diam., smooth. Leaves ca. 15, lowest leaves hanging well below the horizontal; crownshaft 1.4-1.6 m long; rachis ca. 4 m long; middle segments 60-79 cm long and 3.2-3.9 cm wide. Inflorescence ca. 1.2 m long and 1 m wide; prophyll 30.5-40 cm long and 6.5-13.5 cm wide; peduncular bract ca. 1 m long, widest at the middle, apex acuminate; rachillae 15-34 cm long and 1.3-2.6 mm diam. Staminate flowers violet, darkest at the bases of petals and filaments; sepals triangular, 0.9 mm long and 1-1.5 mm wide; petals elliptical, 3.6-5.9 mm long and 2.1-2.5 mm wide; stamens 6, 2.7-4.8 mm long, filaments awl-shaped, 1.9-3.8 mm long, anthers 2.3-3.7 mm long; pistillode minute. Pistillate flowers violet, 2.5-4 per cm; sepals reniform, 0.9-1.4 mm long and 2.5-3.2 mm wide; petals ovate, 2.7-3.4 mm long; staminode shallowly 6-lobed, 1.7-2.5 mm long, free for 0.6-0.9 mm; gynoecium 1.7-1.8 mm long and 1.5-2 mm diam. Fruits obovoid and gibbous, 11.4-15.3 mm long, 7.2-10.4 mm dorsiventral thickness, and 6.7-10.3 mm wide; epicarp black, Stigmatic scar plain; endocarp ellipsoid, 11.8-13.8 mm long 7.7-8.7 mm dorsiventral thickness, and 6.8-8 mm wide; seed ellipsoid, gibbous, 9.3-10.7 mm long, 5.6-6.8 mm dorsiventral thickness, and 6.5-7.3 mm wide; raphe circular. Eophyll linear-lanceolate, n = 18 (Read, 1966).
    Distribution
    Endemic to the limestone hillsides and mountains of Jamaica, up to 760 m.
    [PW]
    Use
    Leaves and leafsheaths are used for thatch and wrapping material. Inflorescence used for brooms.

    Distribution

    Native to:

    Jamaica

    Roystonea altissima (Mill.) H.E.Moore appears in other Kew resources:

    First published in Gentes Herbarum 9: 239 (1963)

    Accepted by

    • Acevedo-Rodríguez, P. & Strong, M.T. (2005). Monocotyledons and Gymnosperms of Puerto Rico and the Virgin Islands Contributions from the United States National Herbarium 52: 1-415.
    • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Palmweb - Palms of the World Online
    • Zona, S. 1996. Roystonea.(Arecaceae: Arecoideae). Flora Neotropica Monograph 71, 1-35.

    Sources

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. 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 2018. 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