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  1. Family: Poaceae Barnhart
    1. Genus: Dinebra Jacq.
      1. Dinebra polycarpha S.M.Phillips

        This species is accepted, and its native range is Ethiopia to E. Tropical Africa.

    [GB]
    Habit
    Annual; caespitose. Culms erect, or geniculately ascending; 38-120 cm long. Leaf-sheaths eglandular. Ligule a ciliolate membrane; 0.75-1.8 mm long; lacerate. Leaf-blades 5-16 cm long; 4-9.5 mm wide. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes few; 10-32; borne along a central axis; spreading; linear; unilateral; 2.5-7 cm long; bearing many spikelets; secondarily branched. Central inflorescence axis 13-20 cm long. Rhachis persistent; with separately deciduous secondary branchlets; wingless; angular. Spikelet packing broadside to rhachis. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.2-5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.2-5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; parallel to lemmas. Lower glume lanceolate; 3.1-5 mm long; 0.9-1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex attenuate. Upper glume lanceolate; 3.1-5 mm long; 2.5-3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex attenuate.
    Florets
    Fertile lemma ovate; 1.3-1.6 mm long; membranous; keeled; lightly keeled; 3 -veined. Lemma midvein pubescent; hairy all along. Lemma lateral veins close to margins. Lemma margins pubescent; hairy all along. Lemma apex dentate; 2 -fid; mucronate. Palea 0.8-0.9 length of lemma; 2 -veined. Palea keels pubescent. Apical sterile florets resembling fertile though underdeveloped.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; isodiametric; trigonous; 0.8-1 mm long.
    Distribution
    Africa: northeast tropical and east tropical.
    Reference
    Eragrostideae. FTEA.
    [FTEA]

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

    Habit
    Loosely tufted annual; culms 38–120 cm. high, slender, erect or ascending.
    Leaves
    Leaf-blades 5–16 cm. long, 4–9.5 mm. wide, soft, finely pointed; ligule 0.75–1.8 mm. long, ciliate; leaf-sheaths scattered pilose.
    Inflorescences
    Inflorescence 13–30 cm. long, open, composed of 10–32 widely spreading linear spikes 2.5–7 cm. long spaced along the central axis; lower spikelets often replaced by short lateral tardily deciduous branchlets up to 13 mm. long, especially on spikes towards the base of the inflorescence.
    Spikelets
    Spikelets 2–(3)-flowered, wedge-shaped, 3.2–5 mm. long, closely overlapping on the triquetrous un-winged rhachis; glumes linear-lanceolate, with acuminate-aristate tips, 3.1–5 mm. long, membranous; lemmas narrowly ovate, 1.3–1.6 mm. long, sericeous along the lateral nerves and in a broad band around the central nerve, 2-lobed; palea sericeous on either side of the keels.
    Fruits
    Caryopsis 0.8–1 mm. long.
    Habitat
    Grassland or bushland, often on damp heavy soils, especially black cotton soil; 880–1500 m.
    Distribution
    not known elsewhere K3 K4 T3 T7 U1

    Images

    Distribution

    Native to:

    Ethiopia, Kenya, Tanzania, Uganda

    Other Data

    Dinebra polycarpha S.M.Phillips appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 1, 1971 Bogdan, A. [AB4028], Kenya K000386372
    Jan 1, 1971 Bogdan, A. [AB2272], Kenya K000386371
    Jan 1, 1971 Dummer, R.A. [5013], Kenya K000386374
    Bogdan, A. [AB4373], Kenya K000386373
    Bogdan, A. [3918], Kenya K000386370
    Langdale-Brown [1574], Uganda K000366537 Unknown type material

    Bibliography

    First published in Kew Bull. 28: 416 (1974)

    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.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.

    Literature

    Kew Backbone Distributions

    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • 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 28: 414, fig. 2 (1973).

    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