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  1. Family: Poaceae Barnhart
    1. Genus: Arthrostylidium Rupr.
      1. Arthrostylidium grandifolium Judz. & L.G.Clark

        This species is accepted, and its native range is Brazil (Pará).

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; 12 mm diam.; woody. Culm-internodes terete; thick-walled; 50 cm long; smooth; distally glabrous. Lateral branches dendroid. Bud complement 1. Branch complement several; in a clump; subtended by a bare patch above the node; with 1 branch dominant; thinner than stem. Leaves 7 per branch. Leaf-sheaths 7-8 cm long; mostly shorter than adjacent culm internode; striately veined; papillose; glabrous on surface. Leaf-sheath oral hairs lacking. Leaf-sheath auricles erect; 5 mm long. Ligule a ciliolate membrane; 6-10 mm long; brown. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 1 cm long; petiole glabrous. Leaf-blades ovate; 20-26 cm long; 50-70 mm wide. Leaf-blade surface papillose; rough adaxially; glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight, or arcuate; bilateral; 25-40 cm long; bearing 15-25 fertile spikelets on each. Rhachis glabrous on surface. Spikelet packing broadside to rhachis. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 4-5 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 17-23 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long.
    Fertile
    Spikelets comprising 4-5 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 17-23 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1-1.5 mm long.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 5.5-7 mm long; chartaceous; 1-keeled; keeled above; 3 -veined. Lower glume lateral veins without connecting veins, or with cross-veins. Lower glume apex acuminate. Upper glume lanceolate; 7-8.5 mm long; 1-keeled; keeled above; 5 -veined. Upper glume lateral veins without cross-veins, or with cross-veins. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 10-11.5 mm long; chartaceous; without keel; 7-9 -veined. Lemma lateral veins without cross-veins, or with cross-veins. Lemma apex acute.
    Flowers
    Lodicules 3. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: Brazil.
    Reference
    Bambuseae. Jud. & Clarke 2001.

    Images

    Distribution

    Native to:

    Brazil North

    Other Data

    Arthrostylidium grandifolium Judz. & L.G.Clark appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 2006 Rosa, N.A. [1897], Para K000433123 isotype

    Bibliography

    First published in Syst. Bot. 18: 88 (1993)

    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