1. Family: Poaceae Barnhart
    1. Genus: Mesosetum Steud.
      1. Mesosetum chlorostachyum (Döll) Chase

        This species is accepted, and its native range is Venezuela to N. & W. Central Brazil.

    [GB]
    Habit
    Annual; caespitose. Culms geniculately ascending, or decumbent; slender; 30-60 cm long; without nodal roots, or rooting from lower nodes. Culm-nodes glabrous, or pubescent, or bearded. Lateral branches ample. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule a fringe of hairs; 1 mm long. Leaf-blades 4-10 cm long; 3-7 mm wide. Leaf-blade surface glabrous to pilose. Leaf-blade margins cartilaginous; tuberculate-ciliate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; unilateral; 5-12 cm long. Rhachis angular; glabrous on margins, or ciliate on margins. Spikelet packing adaxial; lax; irregular; 1 -rowed. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 1 mm long; glabrous, or ciliate.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 3-3.5 mm long; falling entire. Spikelet callus pubescent.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 3-3.5 mm long; falling entire. Spikelet callus pubescent.
    Glume
    Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume linear; 2-3 mm long; 0.6-0.8 length of spikelet; chartaceous; 1-keeled; 3 -veined. Lower glume surface glabrous. Lower glume apex acute, or acuminate. Upper glume lanceolate; 2-2.8 mm long; 0.6-0.8 length of spikelet; membranous; without keels; 3 -veined. Upper glume margins eciliate, or ciliate. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; 1 length of spikelet; membranous; 5 -veined; scaberulous; rough above; acute. Fertile lemma ovate; dorsally compressed; 2.7-3 mm long; coriaceous; without keel; 5 -veined. Lemma margins flat. Lemma apex acute. Palea coriaceous; without keels.
    Flowers
    Anthers 3; purple.
    Fruits
    Caryopsis 2-2.3 mm long. Embryo 0.33 length of caryopsis. Hilum linear; 1 length of caryopsis.
    Distribution
    South America: Brazil.
    Reference
    Paniceae. Filgueiras.

    Images

    Distribution

    Native to:

    Brazil North, Brazil West-Central, Venezuela

    Mesosetum chlorostachyum (Döll) Chase appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 2013 Prance, G.T. [10421], Brazil K000982411
    Spruce, R. [s.n.], Brazil K000643304
    Spruce, R. [1310], Brazil K000643305
    Kuhlmann [1836], Brazil K000982412

    First published in Proc. Biol. Soc. Washington 24: 122 (1911)

    Accepted by

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.

    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