1. Family: Poaceae Barnhart
    1. Genus: Mesosetum Steud.
      1. Mesosetum agropyroides Mez

        This species is accepted, and its native range is Bolivia to Brazil.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms erect; slender; 20-80 cm long. Culm-nodes bearded. Ligule a fringe of hairs; 0.2 mm long. Leaf-blades 3-28 cm long; 2-6 mm wide. Leaf-blade surface glabrous, or pilose; hairy on both sides. Leaf-blade margins cartilaginous; ciliate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; unilateral; 2.2-6 cm long. Rhachis angular; 0.5 mm wide. Spikelet packing adaxial. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 1 mm long.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 5-7 mm long; falling entire. Spikelet callus pubescent.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 5-7 mm long; falling entire. Spikelet callus pubescent.
    Glume
    Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 3.8-5 mm long; 0.75 length of spikelet; chartaceous; 1-keeled; 3-5 -veined. Lower glume primary vein ciliate (below). Lower glume surface pubescent. Lower glume apex acute. Upper glume lanceolate; 5-5.8 mm long; 0.75-1 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface glabrous, or pubescent; with a dorsal tuft of hair. Upper glume margins ciliate (above). Upper glume apex acute.
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret oblong; 1 length of spikelet; membranous; thicker on margins; 5 -veined; ciliate on midvein; smooth on margins, or tuberculate on margins; ciliate on margins; bearing hairs 2 mm long; acute. Fertile lemma ovate; dorsally compressed; 4-4.8 mm long; coriaceous; without keel; 5 -veined. Lemma surface smooth. Lemma margins flat. Lemma apex acute. Palea coriaceous; without keels.
    Flowers
    Anthers 3; purple.
    Fruits
    Caryopsis plano-convex; 3-3.3 mm long. Embryo 0.66 length of caryopsis. Hilum linear; 1 length of caryopsis.
    Distribution
    South America: western South America and Brazil.
    Reference
    Paniceae. Filgueiras.

    Images

    Distribution

    Native to:

    Bolivia, Brazil South, Brazil Southeast, Brazil West-Central

    Mesosetum agropyroides Mez appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    s.coll. [22452], Goiás K000643316
    Glaziou, A.F.M. [s.n.], Brazil K001054402

    First published in Repert. Spec. Nov. Regni Veg. 15: 125 (1918)

    Accepted by

    • da Silva, A.S. & al. (2016). Eleven new records of little known taxa of Mesosetum and Paspalum (Poaceae) from Brazil and Bolivia Phytotaxa 268: 69-79.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • da Silva, A.S. & al. (2016). Eleven new records of little known taxa of Mesosetum and Paspalum (Poaceae) from Brazil and Bolivia Phytotaxa 268: 69-79.
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    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 2019. 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 2019. 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