1. Family: Poaceae Barnhart
    1. Genus: Tatianyx Zuloaga & Soderstr.
      1. Tatianyx arnacites (Trin.) Zuloaga & Soderstr.

        This species is accepted, and its native range is N. & E. Brazil.

    [GB]
    Habit
    Perennial; caespitose. Butt sheaths scarious; dark brown; pubescent, or woolly. Culms erect; 24-56 cm long. Leaves mostly basal. Ligule a fringe of hairs. Leaf-blades 6-13 cm long; 1-2 mm wide.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 3.5-9 cm long. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; tip oblique.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 3.5-4 mm long; falling entire. Spikelet callus oblong; 0.5 mm long; pilose; base obtuse; attached obliquely.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 3.5-4 mm long; falling entire. Spikelet callus oblong; 0.5 mm long; pilose; base obtuse; attached obliquely.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75 length of spikelet; membranous; without keels; 5 -veined. Lower glume surface villous. Lower glume apex acuminate. Upper glume ovate; membranous; without keels; 9 -veined. Upper glume surface villous. Upper glume apex acute.
    Florets
    Basal sterile florets barren; with palea. Lemma of lower sterile floret ovate; 1 length of spikelet; membranous; 9 -veined; villous; hairy in the middle; bearing hairs 1-1.5 mm long; obtuse. Fertile lemma ovate; 3-3.5 mm long; coriaceous; without keel; 5 -veined. Lemma margins involute. Lemma apex obtuse. Palea indurate.
    Fruits
    Hilum linear.
    Distribution
    South America: Brazil.
    Reference
    Paniceae. WDC.

    Images

    Distribution

    Native to:

    Brazil North, Brazil Northeast, Brazil Southeast

    Tatianyx arnacites (Trin.) Zuloaga & Soderstr. appears in other Kew resources:

    First published in Smithsonian Contr. Bot. 59: 56 (1985)

    Accepted by

    • 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/.

    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

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/