1. Family: Poaceae Barnhart
    1. Diandrolyra Stapf

      1. This genus is accepted, and its native range is E. Brazil.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (2), or short (1). Culms erect, or geniculately ascending (1); 8.5-24.58-50 cm long. Ligule an eciliate membrane (2), or absent (1). Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades linear (1), or lanceolate (2), or elliptic (1). Leaf-blade midrib evident (1/1). Leaf-blade venation without cross veins (2), or with obscure cross veins (1).
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence on the same culm as leaves (1), or on a specialized culm bearing a single leaf-blade. Inflorescence composed of racemes. Racemes single; unilateral; bearing few fertile spikelets; bearing 2-8 fertile spikelets on each (1). Rhachis flattened. Sexes mixed. Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster. Male spikelets sessile; 1 in a cluster. Pedicels oblong (2/2).
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic (2), or ovate (2); dorsally compressed; 4.8-5.713-7.2 mm long; falling entire. Spikelet callus brief (1), or square (2); pubescent (1/1). Male spikelets distinct from female; lanceolate. Male spikelet glumes absent (2), or 1 (1). Male spikelet lemma muticous.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic (2), or ovate (2); dorsally compressed; 4.8-5.713-7.2 mm long; falling entire. Spikelet callus brief (1), or square (2); pubescent (1/1).
    Glume
    Glumes reaching apex of florets (1), or exceeding apex of florets (2); thinner than fertile lemma. Lower glume ovate; 1 length of upper glume; herbaceous; without keels; 5-6 -veined (1), or 7 -veined (2), or 9 -veined (1). Lower glume surface glabrous (2), or pubescent (1). Lower glume apex acute (1/2), or acuminate (1/2). Upper glume ovate; 1-1.133-1.2 length of adjacent fertile lemma; herbaceous; with undifferentiated margins (2), or membranous margins (1); without keels; 5-6 -veined (1), or 7 -veined, or 8-9 -veined (1). Upper glume lateral veins with cross-veins (2/2). Upper glume surface glabrous (2), or pubescent (1). Upper glume apex acute (1/2), or acuminate (1/2).
    Florets
    Fertile florets female. Fertile lemma elliptic (1), or ovate; indurate; without keel; 5 -veined (2/2). Lemma margins flat (1), or involute (2). Lemma apex acute; without ornament (2), or scabrous (1). Palea 1 length of lemma; membranous (1), or indurate (2); 2 -veined (2/2).
    Flowers
    Lodicules 3; free, or united (1); fleshy (2/2); truncate (2/2). Anthers 2. Stigmas 2 (2/2).
    Fruits
    Caryopsis with adherent pericarp; ellipsoid (2), or obovoid (1). Hilum linear (2/2); 0.75-0.875-1 length of caryopsis.
    Male
    Male spikelets distinct from female; lanceolate. Male spikelet glumes absent (2), or 1 (1). Male spikelet lemma muticous.
    Distribution
    South America.

    Images

    Distribution

    Native to:

    Brazil Northeast, Brazil Southeast

    Diandrolyra Stapf appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 2013 Soderstrom, T.R. [1967], Brazil K000997246
    Soderstrom, T.R. [1954], Brazil K000997244
    Soderstrom, T.R. [1935], Brazil K000997245

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

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    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