1. Family: Poaceae Barnhart
    1. Genus: Perotis Aiton
      1. Perotis hildebrandtii Mez

        This species is accepted, and its native range is W. Tropical Africa, Ethiopia to Tanzania, Seychelles, Madagascar.

    [FWTA]

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

    Habit
    Annual, 15–45 cm. high, geniculately ascending
    Inflorescences
    Purplish or reddish “bottle brush”inflorescence
    Ecology
    Roadsides and lawns.
    [FTEA]

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

    Habit
    Loosely tufted annual; culms 15–50 cm. high, geniculately ascending, rather wiry.
    Leaves
    Leaf-blades broadly linear to narrowly lanceolate, 1–7 cm. long, 1.5–5 mm. wide.
    Inflorescences
    Spike 2–20 cm. long, exserted from the uppermost sheath, the spikelets loose, distant by several times their own width (but occasionally much denser), spreading horizontally.
    Spikelets
    Spikelets 2.5–3.5 mm. long, with a conspicuous stipitiform callus 0.5–1 mm. long; glumes irregularly puberulous to sparsely hispidulous on the flanks, the midnerve of the upper glume broad, green, slightly depressed, spinulose-scabrid; awns slender, flexuous, 5–15 mm. long.
    Fruits
    Caryopsis strongly flattened.
    Figures
    Fig. 106.
    Habitat
    A weed of open places, roadsides and waste land; sea-level to 1300 m.
    Distribution
    E1 E3 E4 E7 T3 T6 T7 T8 U1 Z W. Africa
    [GB]
    Habit
    Annual; caespitose. Culms decumbent; 15-50 cm long; wiry. Ligule an eciliate membrane. Leaf-blades linear, or lanceolate; 1-7 cm long; 1.5-5 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; multilateral; 2-20 cm long. Spikelet packing lax; irregular. Spikelets spreading; solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.2 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 3-4.5 mm long; falling entire. Spikelet callus linear; 0.5-1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 3-4.5 mm long; falling entire. Spikelet callus linear; 0.5-1 mm long.
    Glume
    Glumes similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 2.5-3.5 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface puberulous, or hispidulous. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 5-15 mm long. Upper glume lanceolate; 2.5-3.5 mm long; 2-3 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume primary vein conspicuous; depressed; spinulose. Upper glume lateral veins absent. Upper glume surface puberulous, or hispidulous. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 5-15 mm long.
    Florets
    Fertile lemma lanceolate; 1-1.5 mm long; hyaline; without keel; 1 -veined. Lemma apex acute. Palea hyaline.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; flattened.
    Distribution
    Africa: west tropical, northeast tropical, east tropical, and western Indian ocean.
    Reference
    Cynodonteae. FTEA.

    Images

    Distribution

    Native to:

    Benin, Ethiopia, Ghana, Kenya, Liberia, Madagascar, Nigeria, Seychelles, Sierra Leone, Somalia, Tanzania, Togo, Uganda

    Perotis hildebrandtii Mez appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hildebrandt, J.M. [1097], Tanzania K000255454 isotype
    Geilinger, W. [85], Tanzania K000255453

    First published in Repert. Spec. Nov. Regni Veg. 17: 145 (1921)

    Accepted by

    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • 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.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.
    • Robertson, S.A. (1989). Flowering Plants of Seychelles: 1-327. Royal Botanic Gardens, Kew.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.

    Literature

    Flora of West Tropical Africa
    • in Fedde Rep. 17: 145 (1921).
    Kew Backbone Distributions
    • 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.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: i-ii, 1-298. The Royal Botanic Gardens, Kew.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    Flora of Tropical East Africa
    • Clayton in Flora of West Tropical Africa, ed. 2, 3: 411 (1972).,.
    • D.M. Napper, Grasses of Tanganyika: 19 (1965).
    • K.W. Harker & D.M. Napper, An Illustrated Guide to the Grasses of Uganda p. 49 (1960).
    • A.V. Bogdan, A Revised List of Kenya Grasses p. 34 (1958).
    • Mez in F. Fedde, Repertorium Speciorum Novarum Regni Vegetabilis 17: 145 (1921).

    Sources

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

    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