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  1. Family: Poaceae Barnhart
    1. Genus: Arthrostylidium Rupr.
      1. Arthrostylidium auriculatum Londoño & L.G.Clark

        This species is accepted, and its native range is Colombia.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; pendulous at the tip; 200-400 cm long; 2-3 mm diam.; woody. Culm-internodes terete; thick-walled; 30-49 cm long; yellow, or light green; distally glabrous. Lateral branches dendroid; intravaginal. Bud complement 1. Branch complement several; in a clump; subtended by a bare patch above the node; with 1 branch dominant; thinner than stem. Culm-sheaths persistent; 4-8 cm long; pubescent; hairy on margins. Leaves 4-6 per branch. Leaf-sheaths pubescent. Leaf-sheath oral hairs setose; 5-8 mm long; dark. Leaf-sheath auricles erect; 1-2.5 mm long. Ligule a ciliolate membrane; 0.5 mm long; pubescent on abaxial surface. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.3-0.5 cm long; petiole glabrous. Leaf-blades lanceolate; 5-16 cm long; 12-25 mm wide. Leaf-blade venation with 14-15 secondary veins. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight; bilateral; 15-30 cm long; bearing 17-19 fertile spikelets on each. Rhachis glabrous on surface, or puberulous on surface. Spikelet packing broadside to rhachis; distant. Rhachis internodes 3-20 mm long. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 13-22 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes flattened; 3-5 mm long.
    Fertile
    Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 13-22 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes flattened; 3-5 mm long.
    Glume
    Glumes several; 3 empty glumes; persistent; similar; shorter than spikelet. Lower glume elliptic; 4.5-6 mm long; chartaceous; without keels. Lower glume surface puberulous. Lower glume margins ciliate. Lower glume apex acute. Upper glume elliptic; 4.5-6 mm long; without keels. Upper glume surface puberulous. Upper glume margins ciliate. Upper glume apex acute.
    Florets
    Fertile lemma elliptic; 6-7.5 mm long; 2-2.5 mm wide; chartaceous; without keel; 7-9 -veined. Lemma surface rugulose; without grooves; puberulous. Lemma margins ciliate. Lemma apex acute; mucronate. Palea 6-6.5 mm long. Apical sterile florets 1 in number; rudimentary.
    Flowers
    Lodicules 3. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; 5.5 mm long. Embryo 0.15 length of caryopsis. Hilum linear; 1 length of caryopsis.
    Distribution
    South America: western South America.
    Reference
    Bambuseae. Lord & Clarke 2001.
    [CPLC]

    Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

    Distribution
    Endémica y nativa en Colombia; Alt. 1510 - 2000 m.; Andes.
    Habit
    Trepadora
    Conservation
    No Evaluada

    Distribution

    Native to:

    Colombia

    Other Data

    Arthrostylidium auriculatum Londoño & L.G.Clark appears in other Kew resources:

    Bibliography

    First published in Novon 8: 410 (1998)

    Accepted by

    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.
    • 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

    • Giraldo-Cañas, D. (2011). Catálogo de la familia Poaceae en Colombia Darwiniana 49: 139-247.

    Sources

    Catálogo de Plantas y Líquenes de Colombia
    http://creativecommons.org/licenses/by-nc-sa/3.0

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/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