1. Family: Poaceae Barnhart
    1. Genus: Eleusine Gaertn.
      1. Eleusine semisterilis S.M.Phillips

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

    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Perennial (?); culms 145 cm. high, slender, erect.
    Leaves
    Leaf-blades linear, loosely folded, 19–30 cm. long, 4–6 mm. wide, scabrid along the keel and margins, tapering to a subacute tip; ligule 0.25 mm. long, a minute membranous ciliolate rim.
    Inflorescences
    Inflorescence subdigitate, composed of ± 9 slender, loosely ascending spikes 5–15 cm. long clustered towards the top of the culm.
    Spikelets
    Spikelets 4–6-flowered, elliptic, 5–6 mm. long, brownish, laxly arranged and only slightly overlapping, those towards the base and apex of the spikes reduced or vestigial; glumes 1-nerved, obtuse, the lower narrowly oblong in profile, 1.7–2.5 mm. long, the upper narrowly elliptic in profile, 2.3–2.4 mm. long; lemmas elliptic-oblong, 3.2–3.8 mm. long, glabrous or obscurely appressed pilose along the margins in the lower half, the tip obtuse.
    Fruits
    Grain obovate, 1–1.2 mm. long, shallowly concave on the hilar side, conspicuously granular-striate, reniform in cross-section.
    Habitat
    Dry open ground; ± 300 m.
    Distribution
    K7 not known elsewhere
    [GB]
    Habit
    Perennial. Culms erect; 100-150 cm long. Culm-internodes elliptical in section. Leaf-sheaths keeled. Ligule a ciliolate membrane; 0.25 mm long. Leaf-blades conduplicate; 19-30 cm long; 4-6 mm wide. Leaf-blade margins scabrous; glabrous. Leaf-blade apex acute.
    Inflorescences
    Inflorescence composed of racemes. Racemes 8-10; digitate; unilateral; 5-15 cm long. Rhachis wingless; flattened; terminating in a sterile spikelet. Spikelet packing broadside to rhachis; lax; regular; 2 -rowed. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Basal sterile spikelets rudimentary, or well-developed; 2-4 in number; barren; smaller than fertile. Apical sterile spikelets barren; 3-5 in number. Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 5-6 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Sterile
    Basal sterile spikelets rudimentary, or well-developed; 2-4 in number; barren; smaller than fertile. Apical sterile spikelets barren; 3-5 in number.
    Fertile
    Spikelets comprising 4-6 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 5-6 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 1.7-2.5 mm long; 0.7-1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume elliptic; 2.3-2.4 mm long; 0.6-0.7 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex obtuse.
    Florets
    Fertile lemma oblong in profile; 3.2-3.8 mm long; membranous; dark brown; 3 -veined. Lemma midvein simple. Lemma margins eciliate, or pilose (obscurely). Lemma apex obtuse. Palea 0.9-1 length of lemma; 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; fleshy.
    Fruits
    Caryopsis with free soft pericarp; obovoid; dorsally compressed; concavo-convex; 1-1.2 mm long; black; granular.
    Distribution
    Africa: east tropical.
    Reference
    Eragrostideae. FTEA.

    Images

    Distribution

    Eleusine semisterilis S.M.Phillips appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1971 Allan, J.A. [507], Kenya K000365332 holotype

    First published in Kew Bull. 27: 263 (1972)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.

    Literature

    Kew Backbone Distributions
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    Flora of Tropical East Africa
    • S. M. Phillips in Kew Bulletin 27: 263, fig. 3 (1972).

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East 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