1. Family: Poaceae Barnhart
    1. Genus: Diandrolyra Stapf
      1. Diandrolyra bicolor Stapf

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

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 10-20 cm long. Leaves cauline; 5-8 per branch. Ligule absent. Leaf-blade base broadly rounded; with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 6-9 cm long; 10-15 mm wide; mid-green and purple; discolorous with last colour beneath (puple below). Leaf-blade venation with obscure cross veins. Leaf-blade apex acute.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on the same culm as leaves (rarely), or on a specialized culm bearing a single leaf-blade. Inflorescence composed of racemes. Racemes 1; single; unilateral; 1.5 cm long; bearing few fertile spikelets; bearing 4-5 fertile spikelets on each. Rhachis flattened. Sexes mixed. Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster. Male spikelets sessile; 1 in a cluster. Pedicels oblong; 1 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 6 mm long; falling entire. Spikelet callus square; 0.5 mm long.
    Glume
    Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 6 mm long; 1 length of upper glume; herbaceous; without keels; 7 -veined. Lower glume lateral veins with cross-veins. Lower glume apex acuminate. Upper glume ovate; 6 mm long; 1.2 length of adjacent fertile lemma; herbaceous; without keels; 7 -veined. Upper glume lateral veins with cross-veins. Upper glume apex acuminate.
    Florets
    Fertile florets female. Fertile lemma ovate; 5 mm long; indurate; pallid; without keel; 5 -veined. Lemma margins involute. Lemma apex acute. Palea 1 length of lemma; indurate; 2 -veined.
    Flowers
    Lodicules 3; fleshy; truncate. Anthers 2; 1 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid.
    Spikelets
    Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 5 mm long; glabrous. Male spikelet glumes absent. Male spikelet lemma 3 -veined; muticous. Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 6 mm long; falling entire. Spikelet callus square; 0.5 mm long.
    Male
    Male spikelets distinct from female; 1 flowered; separately deciduous; lanceolate; 5 mm long; glabrous. Male spikelet glumes absent. Male spikelet lemma 3 -veined; muticous.
    Distribution
    South America: Brazil.
    Reference
    Olyreae. WDC.

    Images

    Distribution

    Native to:

    Brazil Northeast, Brazil Southeast

    Diandrolyra bicolor Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 29, 2013 Soderstrom, T.R. [1920], Brazil K000997247
    Brazil 43524.000
    Sander, Brazil K000433380 holotype

    First published in Bull. Misc. Inform. Kew 1906: 204 (1906)

    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