1. Family: Poaceae Barnhart
    1. Genus: Melica L.
      1. Melica tenuis Arechav.

        This species is accepted, and its native range is S. Brazil to NE. Argentina.

    [GB]
    Habit
    Perennial. Rhizomes short. Culms erect; 30-150 cm long. Culm-internodes retrorsely scabrous. Lateral branches lacking. Leaf-sheaths tubular for much of their length; with 1 of their length closed; longer than adjacent culm internode; retrorsely scabrous; glabrous on surface, or pubescent. Ligule an eciliate membrane, or absent; 0-0.3 mm long. Leaf-blades flat, or involute; 10-15 cm long; 1.5-2 mm wide; stiff. Leaf-blade surface scaberulous; rough abaxially; hispid; hairy adaxially. Leaf-blade margins scabrous.
    Inflorescences
    Inflorescence a panicle. Panicle contracted, or spiciform; linear; 8-18 cm long; 1-1.5 cm wide. Primary panicle branches appressed; simple. Panicle axis dominant; scabrous. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; curved; pubescent; hairy all along but hairs longer above.
    Spikelets
    Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets cuneate; dorsally compressed; 7.5-9 mm long; falling entire. Rhachilla internodes glabrous, or pubescent.
    Fertile
    Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets cuneate; dorsally compressed; 7.5-9 mm long; falling entire. Rhachilla internodes glabrous, or pubescent.
    Glume
    Glumes dissimilar; with lower wider than upper; shorter than spikelet; thinner than fertile lemma. Lower glume obovate, or flabellate; 4-5.5 mm long; 0.8-0.9 length of upper glume; membranous; much thinner above; much thinner on margins; without keels; 5-7 -veined. Lower glume primary vein falling short of apex. Lower glume apex erose; obtuse. Upper glume lanceolate; 5-5.5 mm long; 1 length of adjacent fertile lemma; membranous; much thinner above; with hyaline margins; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Fertile lemma lanceolate; 5-5.5 mm long; chartaceous; much thinner above; much thinner on margins; without keel. Lemma surface asperulous. Lemma margins ciliate. Lemma apex obtuse, or acute. Palea 3-3.5 mm long; 2 -veined. Palea keels ciliolate. Palea surface scaberulous. Apical sterile florets barren; in a clump; cuneate. Apical sterile lemmas truncate.
    Flowers
    Lodicules 2; united; oblong; 0.3 mm long; fleshy; truncate. Anthers 3; 1-1.3 mm long.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid; 1.8-2 mm long; dark brown. Hilum linear.
    Distribution
    South America: Brazil and southern South America.
    Reference
    Meliceae. Torres 1995.

    Images

    Distribution

    Native to:

    Argentina Northeast, Brazil South, Paraguay, Uruguay

    Melica tenuis Arechav. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Hatschbach, G. [50651], Brazil K001101169
    Rosengurtt [9044], Brazil K001101170

    First published in Anales Mus. Nac. Montevideo 1: 450 (1896)

    Accepted by

    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.
    • 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/.
    • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348.

    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 2018. 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 2018. 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