1. Family: Poaceae Barnhart
    1. Genus: Danthonia DC.
      1. Danthonia breviseta Hack.

        This species is accepted, and its native range is Brazil (Rio de Janeiro).

    [GB]
    Habit
    Perennial; mat forming. Rhizomes short. Basal innovations extravaginal. Culms erect; 30-70 cm long; 1-3 mm diam.; 2-4 -noded; with 0.5-0.66 of their length below uppermost node; disarticulating at the nodes. Lateral branches lacking. Leaf-sheaths glabrous on surface, or pubescent. Leaf-sheath oral hairs ciliate; 1.5-3 mm long. Ligule a fringe of hairs; 0.3-0.6 mm long. Leaf-blades convolute; 30-50 cm long; 3-4 mm wide; stiff. Leaf-blade surface scabrous. Leaf-blade apex filiform.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate; 5-10 cm long; 2-3 cm wide; bearing few spikelets. Panicle branches glabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-12 mm long.
    Spikelets
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 10-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.8-1 mm long. Floret callus evident; 0.6-0.8 mm long; pilose. Floret callus hairs 1-1.5 mm long.
    Fertile
    Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 10-12 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.8-1 mm long. Floret callus evident; 0.6-0.8 mm long; pilose. Floret callus hairs 1-1.5 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 9-11 mm long; 1 length of upper glume; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume lanceolate; 9-11 mm long; 2 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 4.5-5.5 mm long; chartaceous; without keel; 9 -veined. Lemma surface pilose; hairy below. Lemma margins ciliolate. Lemma hairs 1-2 mm long. Lemma apex lobed; 2 -fid; with triangular lobes; incised 0.33-0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; adnate to lemma lobes at base; 5.5-8 mm long overall; with a straight or slightly twisted column. Column of lemma awn 1.5-2 mm long. Palea 4.5-6 mm long; 2 -veined. Palea keels 1-1.2 mm apart; ciliolate. Palea surface pubescent; hairy on back; hairy below. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; cuneate; 0.6-0.8 mm long; fleshy; glabrous. Anthers 3; 2-2.5 mm long.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear.
    Cleistogene
    Cleistogenes present; in lower sheaths.
    Distribution
    South America: Brazil.
    Reference
    Arundineae. Conert 1993.

    Images

    Distribution

    Native to:

    Brazil Southeast

    Danthonia breviseta Hack. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Glaziou, A.F.M. [16601], Brazil K000308584 isotype
    Castellanos, A. [24411], Brazil K001055185
    Glaziou, A.F.M. [17361], Brazil K000308583 isotype

    First published in Oesterr. Bot. Z. 52: 192 (1902)

    Accepted by

    • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.

    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