1. Family: Poaceae Barnhart
    1. Genus: Perotis Aiton
      1. Perotis hordeiformis Nees

        This species is accepted, and its native range is Central & S. China to Tropical Asia.

    [GB]
    Habit
    Annual. Culms geniculately ascending; (5-)15-40 cm long. Ligule an eciliate membrane. Leaf-blades lanceolate, or ovate; 1.5-4(-5.5) cm long; 4-7.5 mm wide.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; multilateral; 5-15(-20) cm long. Spikelet packing crowded, or contiguous; irregular. Spikelets spreading, or ascending; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 1.5-2.5 mm long; falling entire. Spikelet callus square; 0.2 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 1.5-2.5 mm long; falling entire. Spikelet callus square; 0.2 mm long.
    Glume
    Glumes similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1.5-2.5 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface hispidulous; hairy in lines. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 5-15 mm long. Upper glume lanceolate; 1.5-2.5 mm long; 1.5-2.5 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume primary vein distinct. Upper glume lateral veins absent. Upper glume surface hispidulous; hairy in lines. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 5-15 mm long.
    Florets
    Fertile lemma lanceolate; 0.5-1 mm long; hyaline; without keel; 1 -veined. Lemma apex acute. Palea hyaline; 0 -veined; without keels.
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-temperate: China. Asia-tropical: India, Indo-China, and Papuasia.
    Reference
    Cynodonteae. Fl Pak.

    Images

    Distribution

    Native to:

    China North-Central, China South-Central, China Southeast, East Himalaya, Lesser Sunda Is., Maluku, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sulawesi, Thailand, West Himalaya

    Perotis hordeiformis Nees appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mar 24, 2009 Smitinand, T. [5977], Thailand K000648156
    Mar 24, 2009 Put [4240], Thailand K000648159
    Mar 24, 2009 Lazarides, M. [7406], Thailand K000648160
    Mar 24, 2009 Iwatsuki, k. [T 10388], Thailand K000648158
    Kerr, A.F.G. [1352], Thailand K000621636
    Kerr, A.F.G. [8047], Thailand K000621637
    Kerr, A.F.G. [11077], Thailand K000621638
    Sorensen, Th. [4283], Thailand K000682691
    Sorensen, Th. [5177], Thailand K000682692
    Sorensen, Th. [5037], Thailand K000648157
    van Beusekom, C.F. [4003], Thailand K000682690
    Put [4240], Thailand K000621639
    Cuming, H. [1399], Philippines K000290350 isotype
    Cuming, H. [1914], Philippines K000290352
    Marcan, A. [2723], Thailand K000621640
    U Thein Lwin [385], Burma K000245206 Unknown type material
    Phloenchit [1595], Thailand K000682689
    Chamisso, L.A.von [s.n.], Philippines K000290351 isolectotype

    First published in W.J.Hooker & G.A.W.Arnott, Bot. Beechey Voy.: 248 (1838)

    Accepted by

    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    Not accepted by

    • Turner, I.M., Middleton, D.J., Duistermaat, H. & Veldkamp, J.F. (2019). Flora of Singapore precursors, 6: Typification of grass names relevant to the flora of Singapore Gardens' Bulletin Singapore 71: 1-44. [Cited as Perotis indica.]

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
    • Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    Sources

    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