1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne pygmaea Griseb.

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

    [GB]
    Habit
    Perennial. Culms prostrate; 5-15 cm long. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule a fringe of hairs. Leaf-blades lanceolate; 0.5-2 cm long; 2-2.5 mm wide. Leaf-blade surface glabrous, or puberulous. Leaf-blade margins cartilaginous; scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform; linear; 1-2(-3) cm long. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets elliptic, or orbicular; dorsally compressed; obtuse; 1.3 mm long; breaking up at maturity; disarticulating above glumes but not between florets.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets elliptic, or orbicular; dorsally compressed; obtuse; 1.3 mm long; breaking up at maturity; disarticulating above glumes but not between florets.
    Glume
    Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume oblong; 0.66 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex obtuse. Upper glume orbicular; 0.66 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex truncate, or obtuse.
    Florets
    Fertile lemma orbicular; 1.3 mm long; coriaceous; without keel. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: Caribbean.
    Reference
    Isachneae. N Amer Fl 1994.

    Images

    Distribution

    Native to:

    Jamaica

    Isachne pygmaea Griseb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Macfayden [s.n.], Jamaica K000643017

    First published in Fl. Brit. W. I.: 558 (1864)

    Accepted by

    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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