1. Family: Poaceae Barnhart
    1. Genus: Diandrolyra Stapf
      1. Diandrolyra tatianae Soderstr. & Zuloaga

        This species is accepted, and its native range is SE. Brazil (to Bahia).

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms erect, or geniculately ascending; 40-50 cm long. Culm-internodes thin-walled. Culm-nodes brown; pubescent. Leaves cauline; 4-6 per branch. Leaf-sheaths ribbed; glabrous on surface. Ligule an eciliate membrane; white. Leaf-blade base broadly rounded; symmetrical; with a brief petiole-like connection to sheath; petiole 0.2 cm long; petiole pubescent. Leaf-blades linear, or elliptic; 10-16 cm long; 10-40 mm wide; mid-green, or mid-green and purple; concolorous, or discolorous with last colour beneath (purple below). Leaf-blade midrib evident. Leaf-blade surface glabrous. Leaf-blade margins smooth. Leaf-blade apex acute.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on a specialized culm bearing a single leaf-blade. Inflorescence composed of racemes. Peduncle pubescent above. Racemes 1; single; unilateral; 3 cm long; bearing few fertile spikelets; bearing 6-8 fertile spikelets on each. Rhachis flattened; glabrous on margins. Sexes mixed. Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster. Male spikelets sessile; 1 in a cluster. Pedicels oblong.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 6.1-6.2 mm long; 2-3 mm wide; falling entire. Spikelet callus square; 1 mm long; pubescent.
    Glume
    Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 5.4 mm long; 1 length of upper glume; herbaceous; without keels; 9 -veined. Lower glume lateral veins with cross-veins. Lower glume surface pubescent; hairy on veins. Lower glume apex acute. Upper glume ovate; 5.2 mm long; 1 length of adjacent fertile lemma; herbaceous; without keels; 7-9 -veined. Upper glume lateral veins with cross-veins. Upper glume surface pubescent; hairy on veins. Upper glume apex acute.
    Florets
    Fertile florets female. Fertile lemma ovate; 5 mm long; 2 mm wide; indurate; pallid; without keel; 5 -veined. Lemma margins flat. Lemma apex acute; scabrous. Palea 1 length of lemma; indurate; 2 -veined.
    Flowers
    Lodicules 3; free (male), or united (female); fleshy; truncate. Anthers 2; 1 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; obovoid. Hilum linear; 0.75 length of caryopsis.
    Spikelets
    Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 5 mm long; glabrous. Male spikelet glumes absent (except terminal spikelet). Male spikelet lemma 3 -veined; muticous. Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 6.1-6.2 mm long; 2-3 mm wide; falling entire. Spikelet callus square; 1 mm long; pubescent.
    Male
    Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 5 mm long; glabrous. Male spikelet glumes absent (except terminal spikelet). Male spikelet lemma 3 -veined; muticous.
    Distribution
    South America: Brazil.
    Reference
    Olyreae. Soderstrom 1994.

    Images

    Distribution

    Native to:

    Brazil Northeast, Brazil Southeast

    Diandrolyra tatianae Soderstr. & Zuloaga appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 2013 Soderstrom, T.R. [2630], Brazil K000997248
    Soderstrom [1993], São Paulo K000433381 isotype

    First published in Brittonia 37: 2 (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