1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne guineensis Stapf & C.E.Hubb.

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

    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Habit
    Culms ascending, rooting at the lower nodes.
    [GB]
    Habit
    Perennial. Culms geniculately ascending; 15-30 cm long; rooting from lower nodes. Ligule a fringe of hairs. Leaf-blades linear; 6-12 cm long; 5-10 mm wide. Leaf-blade surface smooth; glabrous. Leaf-blade margins cartilaginous; scaberulous.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 2.5-7.5 cm long; contracted about primary branches. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; unequal; 2-8 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets, or 0 basal sterile florets; 1 fertile florets, or 2 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
    Fertile
    Spikelets comprising 1 basal sterile florets, or 0 basal sterile florets; 1 fertile florets, or 2 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
    Glume
    Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic; 1.9 mm long; 1 length of upper glume; 0.9 length of spikelet; membranous; without keels; 5-7 -veined. Lower glume apex obtuse. Upper glume elliptic; 1.9 mm long; membranous; without keels; 5-7 -veined. Upper glume apex obtuse.
    Florets
    Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret elliptic; 1.7 length of fertile lemma; 1 length of spikelet; membranous; glabrous. Fertile florets female; with the lowest dissimilar (bisexual, or male when see above). Lowest fertile lemma elliptic; 1.7 length of adjacent lemma; thinner than adjacent lemma; glabrous. Fertile lemma ovate; 2 mm long; coriaceous; without keel; 5-7 -veined. Lemma lateral veins obscure. Lemma surface puberulous. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Anthers 3; 1 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Africa: west tropical.
    Reference
    Isachneae. FTA.

    Images

    Distribution

    Isachne guineensis Stapf & C.E.Hubb. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Chevalier, A. [37601], Guinea K000281011 holotype

    First published in Bull. Misc. Inform. Kew 1933: 302 (1933)

    Accepted by

    • Lisowski, S. (2009). Flore (Angiospermes) de la République de Guinée Scripta Botanica Belgica 41: 1-517.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.

    Literature

    Flora of West Tropical Africa
    • A. Chev. in Rev. Bot. Appliq. 14: 41.
    • F.T.A. 9: 1094
    • in Kew Bull. 1933: 302
    Kew Backbone Distributions
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.

    Sources

    Flora of West Tropical Africa
    Flora of West Tropical Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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