1. Family: Poaceae Barnhart
    1. Genus: Arthrostylidium Rupr.
      1. Arthrostylidium scandens McClure

        This species is accepted, and its native range is N. South America.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms arching, or leaning, or scandent; slender; 500-800 cm long; 5-9 mm diam.; woody; rooting from lower nodes. Culm-internodes terete; thick-walled; smooth; distally glabrous. Culm-nodes brown, or purple. Lateral branches dendroid; intravaginal. Bud complement 1. Branch complement two, or three; in a clump; subtended by a bare patch above the node; with subequal branches. Culm-sheaths deciduous; distinctly mottled with last colour; glabrous on margins, or hairy on margins; without auricles; glabrous on shoulders. Culm-sheath ligule 0.2-0.3 mm high; ciliolate. Culm-sheath blade lanceolate; deciduous; 7-11 cm long. Leaves 5-9 per branch. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking, or setose; 6-10 mm long; pale, or dark. Leaf-sheath auricles erect. Ligule an eciliate membrane; 3-5 mm long; membranous; brown. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.4-0.6 cm long; petiole glabrous. Leaf-blades deciduous at the ligule; lanceolate; 10-23 cm long; 15-45 mm wide. Leaf-blade midrib indistinct. Leaf-blade surface glabrous, or puberulous; hairy abaxially. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes; terminal and axillary. Racemes 1; single; straight; bilateral; 10-25 cm long; bearing 7-12 fertile spikelets on each. Rhachis glabrous on surface. Spikelet packing broadside to rhachis; lax. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 28-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes flattened; clavate; 4-7 mm long; eventually visible between lemmas.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 28-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes flattened; clavate; 4-7 mm long; eventually visible between lemmas.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume elliptic; 4-5 mm long; chartaceous; without keels; 1-5 -veined. Lower glume lateral veins absent, or distinct. Lower glume apex acute. Upper glume lanceolate; 6-7 mm long; 1-keeled; keeled above; 5-7 -veined. Upper glume apex acute; mucronate.
    Florets
    Basal sterile florets barren; with palea; persisting on inflorescence. Lemma of lower sterile floret similar to fertile lemma. Fertile lemma lanceolate, or ovate; 9-11 mm long; chartaceous; without keel; 7-9 -veined. Lemma apex acute; mucronate. Palea 1 length of lemma. Palea surface puberulous; hairy on back. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3. Anthers 3. Stigmas 2. Ovary umbonate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: northern South America.
    Reference
    Bambuseae. Fl Guiana 1995.

    Images

    Distribution

    Native to:

    Guyana, Suriname, Venezuela

    Arthrostylidium scandens McClure appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Maguire, B. [30249], Venezuela K000433125 isotype
    Maguire, B. [29957], Venezuela K000433133 isotype

    First published in Mem. New York Bot. Gard. 10(5): 4 (1964)

    Accepted by

    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.

    Literature

    Kew Backbone Distributions
    • Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
    • Boggan, J. Funck, V. & Kelloff, C. (1997). Checklist of the Plants of the Guianas (Guyana, Surinam, Franch Guiana) ed. 2: 1-238. University of Guyana, Georgetown.

    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