1. Family: Poaceae Barnhart
    1. Genus: Perotis Aiton
      1. Perotis leptopus Pilg.

        This species is accepted, and its native range is Tanzania to Namibia.

    [GB]
    Habit
    Annual; caespitose. Culms geniculately ascending, or decumbent; 25-60 cm long. Ligule an eciliate membrane. Leaf-blades lanceolate; 1-4 cm long; 2-5 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; multilateral; 2-10 cm long. Spikelet packing crowded; irregular. Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.2 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 2.3-3 mm long; falling entire. Spikelet callus oblong; 0.3-0.7 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 2.3-3 mm long; falling entire. Spikelet callus oblong; 0.3-0.7 mm long.
    Glume
    Glumes similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 2-2.4 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface hispidulous. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 20-40 mm long. Upper glume lanceolate; 2-2.4 mm long; 2-3 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume primary vein distinct. Upper glume lateral veins absent. Upper glume surface hispidulous. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 20-40 mm long.
    Florets
    Fertile lemma lanceolate; 0.5-1 mm long; hyaline; without keel; 1 -veined. Lemma apex acute. Palea hyaline.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; fusiform; isodiametric.
    Distribution
    Africa: east tropical, southern tropical, and south.
    Reference
    Cynodonteae. FTEA.
    [FZ]

    Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999

    Habit
    Annual up to 60 cm tall, slender, erect or geniculately ascending; leaf laminas 1–4 cm × 2–5 mm, lanceolate.
    Inflorescences
    Inflorescence 2–10 cm long, well exserted from the uppermost leaf sheath, the spikelets densely packed and appressed to the rhachis.
    Spikelets
    Spikelets 2–2.4 mm long with a stipitiform callus 0.3–0.7 mm long; glumes minutely hispidulous, with a slender, often pallid, erect awn, that of the inferior glume 20–35 mm long, that of the superior 11–17 mm long.
    Fruits
    Caryopsis terete.
    [FTEA]

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

    Habit
    Loosely tufted annual; culms 25–60 cm. high, slender, erect or geniculately ascending.
    Leaves
    Leaf-blades lanceolate, 1–4 cm. long, 2–5 mm. wide.
    Inflorescences
    Spike 2–10 cm. long, exserted from the uppermost sheath, the spikelets densely packed and appressed to the rhachis.
    Spikelets
    Spikelets 2–2.4 mm. long, with a stipitiform callus 0.3–0.7 mm. long; glumes minutely hispidulous, with a slender, often pallid, erect awn 20–40 mm. long.
    Fruits
    Caryopsis terete.
    Habitat
    Open places in Brachystegia wooded grassland; 400–1400 m.
    Distribution
    T4 T5 T7 T8 southwards to South Africa

    Images

    Distribution

    Native to:

    Angola, Botswana, Malawi, Mozambique, Namibia, Tanzania, Zambia, Zimbabwe

    Perotis leptopus Pilg. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Bidgood, S. [6247], Tanzania K000468178
    Bidgood, S. [5816], Tanzania K000468609
    Schlieben, H.J. [2316], Tanzania K000255455 isotype

    First published in Notizbl. Bot. Gart. Berlin-Dahlem 11: 804 (1933)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. 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
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    Flora of Tropical East Africa
    • D.M. Napper, Grasses of Tanganyika: 20 (1965).
    • Jackson & Wiehe, Ann. list Nyasaland grasses: 54 (1958).
    • Pilg. in Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahelm 11: 804 (1933).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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