1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Roystonea O.F.Cook
      1. Roystonea lenis León

        This species is accepted, and its native range is E. Cuba.

    [PW]
    Vernacular
    Palma conga, palma de seda, palma india.
    Distribution
    Restricted to the province of Guantánamo, eastern Cuba, at 350-420 m altitude, but apparently not as narrowly distributed as other eastern Cuban Roystonea (Zona, 1991 ).
    General Description
    Trunk gray-white, to 20 m tall, 35-47 cm diam. and often ventricose. Leaves ca. 15, lowest leaves hanging well below the horizontal; crownshaft ca. 2 m long; petiole 0.2-0.7 m long; rachis 4-5.8 m long; middle segments 87-132 cm long and 2.5-4.5 cm wide. Inflorescence ca. 1 m long and 1 m wide; prophyll not seen; peduncular bract ca. 1.8 m long, widest at the middle, apex acuminate; rachillae puberulent, 14-31 cm long and 1-2.8 10 m diam. Staminate flowers white; sepals reniform with acute apices, 0.7-1.5 mm long and 1.5-2.1 mm wide; petals ovate. 4.7-6.4 mm long and 2.9-4.2 mm wide; stamens 6(-10), 4.7-7.2 mm long, filaments awlshaped, 4-5.4 mm long, anthers 2.7-4.5 mm long, pistillode minute. Pistillate flowers white, 2-3 per cm; sepals reniform, 1.2-1.9 mm long and 3-4.8 mm wide; petals ovate, 2.9-3.6 mm long; staminode 6- lobed, 2.2-2.9 mm long, free for 0.7-1.2 mm; gynoecium 1.9-3.7 mm long and 1.2-2.5 mm diam. Fruits ellipsoid, 11.3-14 mm long, 9.2-11.2 mm dorsiventralthickness, and 8.8-11.1 mm wide; epicarp black, stigmatic scar plain; endocarp spheroid to ellipsoid, hard and durable, 9.1-12.2 mm long, 7-9.2 mm dorsiventral thickness, and 7.4-8.6 mm wide; seed dorsi ventrally compressed spheroid, 7.9-9.9 mm long, 5.6-6.7 mm dorsiventral thickness, and 6.6-7.7 mm wide; raphe circular. Eophyll linear-lanceolate, weakly stipitate or exstipitate, costate.
    [PW]
    Use
    Trunks are used for timber; leaves and leafbases are used for thatch and wrapping material. Fruits are used as hog feed.

    Distribution

    Roystonea lenis León appears in other Kew resources:

    First published in Mem. Soc. Cub. Hist. Nat. ''Felipe Poey'' 17: 8 (1943)

    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 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