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

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

    [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
    Nativa en Colombia; Alt. 1800 - 1900 m.; Andes.
    Habit
    Trepadora
    Conservation
    No Evaluada
    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; 400-700 cm long; 5-10 mm diam.; woody. Culm-internodes terete; thin-walled; 18-51 cm long. Lateral branches dendroid; intravaginal. Bud complement 1. Branch complement several; in a clump; subtended by a bare patch above the node; with subequal branches; thinner than stem. Culm-sheaths persistent; 7.5-15 cm long; 2.5-3 times as long as wide; green and purple; distinctly mottled with last colour; glabrous. Culm-sheath ligule 0.5 mm high. Culm-sheath blade triangular; demarcated but persistent; erect; 5-11 cm long; 18-32 mm wide; pubescent and with ciliate margins. Leaves 4-6(-9) per branch. Leaf-sheaths striately veined; papillose; glabrous on surface; outer margin glabrous, or hairy. Leaf-sheath oral hairs setose; curly; 6-10 mm long; pale. Ligule a ciliolate membrane; 0.8-1 mm long; pubescent on abaxial surface. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.4-0.7 cm long; petiole pubescent. Leaf-blades ovate; 10-22 cm long; 20-40 mm wide. Leaf-blade midrib indistinct. Leaf-blade venation with distinct cross veins. Leaf-blade surface glabrous, or pilose; hairy abaxially. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight; bilateral; 10-15 cm long; bearing few fertile spikelets; bearing 4-8 fertile spikelets on each. Rhachis pilose on surface. Spikelet packing broadside to rhachis. Rhachis internodes 6-26 mm long. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5-10 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 25-50 mm long; 3-6 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3-5 mm long; pilose.
    Fertile
    Spikelets comprising 5-10 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 25-50 mm long; 3-6 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3-5 mm long; pilose.
    Glume
    Glumes two, or several; 2-3 empty glumes; persistent; similar; shorter than spikelet. Lower glume ovate; 3.5-5.5 mm long; chartaceous; without keels. Lower glume primary vein scabrous. Lower glume surface glabrous. Lower glume margins ciliate. Lower glume apex acute. Upper glume ovate; 6.5-8 mm long; without keels; 7-9 -veined. Upper glume surface glabrous. Upper glume margins ciliate. Upper glume apex acute; mucronate.
    Florets
    Fertile lemma ovate; 9-10.5 mm long; 4-5 mm wide; chartaceous; without keel; 7-10 -veined. Lemma surface rugulose; without grooves; glabrous. Lemma margins ciliolate. Lemma apex acute; mucronate. Palea 8-9.5 mm long; 3 -veined. Palea keels ciliolate. Apical sterile florets 1 in number; rudimentary.
    Flowers
    Lodicules 3; 2-4 mm long; veined; ciliate. Anthers 3; 2-2.5 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: western South America.
    Reference
    Bambuseae. Lord & Clarke 2001.

    Distribution

    Native to:

    Colombia

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

    First published in Novon 8: 415 (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