1. Family: Poaceae Barnhart
    1. Genus: Digitaria Haller
      1. Digitaria gymnotheca Clayton

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

    [FTEA]

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

    Habit
    Stoloniferous perennial; culms 30–60 cm. high, wiry, ascending, decumbent below.
    Leaves
    Leaf-blades broadly linear, 5–20 cm. long, 4–7 mm. wide, the tip filiform.
    Inflorescences
    Inflorescence of 2–6 slender racemes, these subdigitate or borne on a short axis up to 2 cm. long, not whorled; racemes 8–15 cm. long, with a triquetrous rhachis bearing contiguous pairs of spikelets, these sometimes arrested towards the base of the raceme.
    Spikelets
    Spikelets lanceolate, 2.7–3 mm. long; lower glume a little ovate scale 0.2 mm. long, separated from the lower lemma by a very short internode 0.1–0.2 mm. long; upper glume 0.5 mm. long; lower lemma as long as the spikelet, 7-nerved, the nerves raised and prominent, glabrescent on the back, shortly pilose to villous on the margins; fruit narrowly ellipsoid, chestnut brown, subacuminate.
    Habitat
    In shade of trees, bushes or rocks on sandy soils; 0–900 m.
    Distribution
    K1 K7 not known elsewhere
    [GB]
    Habit
    Perennial. Stolons present. Culms decumbent; 30-60 cm long; wiry. Ligule an eciliate membrane. Leaf-blades 5-20 cm long; 4-7 mm wide. Leaf-blade apex filiform.
    Inflorescences
    Inflorescence composed of racemes. Racemes 2-6; digitate, or borne along a central axis; simply spaced; unilateral; 8-15 cm long. Central inflorescence axis 0-2 cm long. Rhachis wingless; angular. Spikelet packing contiguous. Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels unequal.
    Sterile
    Basal sterile spikelets absent, or rudimentary.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 2.7-3 mm long; falling entire. Rhachilla internodes elongated below basal sterile floret. Rhachilla elongation 0.1-0.5 mm long. Basal sterile spikelets absent, or rudimentary.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 2.7-3 mm long; falling entire. Rhachilla internodes elongated below basal sterile floret. Rhachilla elongation 0.1-0.5 mm long.
    Glume
    Glumes two; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.1 length of spikelet; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.2 length of spikelet; hyaline; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 1 length of spikelet; membranous; 7 -veined; ribbed; glabrous; villous on margins; acute. Fertile lemma elliptic; 2.7-3 mm long; cartilaginous; much thinner on margins; dark brown; without keel. Lemma margins flat; covering most of palea. Lemma apex acuminate. Palea cartilaginous.
    Distribution
    Africa: northeast tropical and east tropical.
    Reference
    Paniceae. FTEA.

    Images

    Distribution

    Native to:

    Ethiopia, Kenya

    Digitaria gymnotheca Clayton appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 1, 1974 Bogdan, A. [AB2589], Kenya K000281442 holotype
    Dec 1, 1974 Gillespie, J.B. [324], Kenya K000489864
    Sep 1, 1973 Gillett, J.B. [13100], Kenya K000489862

    First published in Kew Bull. 29: 519 (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. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.

    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. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
    Flora of Tropical East Africa
    • W.D. Clayton in Kew Bulletin 29: 519 (1974).

    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