1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Bactris Jacq. ex Scop.
      1. Bactris ptariana Steyerm.

        This species is accepted, and its native range is SE. Venezuela to Guyana.

    [PW]
    Vernacular
    Guyana: maswa.
    Distribution
    Venezuela (Bolívar) and Guyana;
    Habitat
    In open areas near forest margins or in forest, or dwarf forest, usually on white sandsoils (wallaba forest in Guyana), at 10-1980 m elevation.
    General Description
    Stems solitary or cespitose, 2-3(-9) m tall, 3-5(-10) cm diam., spiny on internodes. Leaves 5-9; leafspines distinctly clustered, black, somewhat flattened, pilose except at base, spinulose, 1-3 cm long, dense on sheath and on lateral surfaces of petiole, fewer on rachis; sheath 20-76 cm long; ocrea not seen; petiole 15-40(-80) cm long; rachis 1-2 m long; pinnae 15-47 per side, irregularly arranged in clusters but spreading in more or less the same plane, linear or linear lanceolate, acuminate, sometimes strongly plicate, sparsely to densely spinulose abaxially; middle pinnae 44-65 x 2.5- 5 cm (the apical pinna wider than the others). Inflorescences infrafoliar, borne among the persistent leaf bases; peduncle 11-24 cm long, recurved, spiny; prophyll 7-12 cm long; peduncular bract 12-48 cm long, sparsely to densely covered with appressed, black spines to 1 cm long; rachis 2-5 cm long; rachillae 12-25, 6-17 cm long, at anthesis densely covered with short, brown or white, flexuous trichomes; triads irregularly aranged almost to apex of rachillae among paired or solitary staminate flowers; staminate flowers 3-4 mm long; sepal lobes ca. 1 mm long; petals 3-4 mm long; stamens 6; pistillode absent; pistillate flowers 3-3.5 mm long; calyx annular,0.5 mm long, glabrous or pilose; corolla cupular, 2-2.5 mm long, densely spinulose; staminodes absent; fruits 0.7-1 x 0.6- 0.8 cm, obovoid, rostrate, bright orange or red, rarely minutely spinulose; mesocarp starchy; endocarp turbinate, the sterile pores slightly displaced longitudinally; endocarp fibers absent or present and adherent to endocarp; fruiting perianth with obscure calyx and lobed, tomentose corolla, without staminodial ring.

    Distribution

    Native to:

    Guyana, Venezuela

    Bactris ptariana Steyerm. appears in other Kew resources:

    First published in Fieldiana, Bot. 28: 77 (1951)

    Accepted by

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Palmweb - Palms of the World Online
    • Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000

    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