1. Family: Poaceae Barnhart
    1. Genus: Arthrostylidium Rupr.
      1. Arthrostylidium longiflorum Munro

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms 300-400 cm long; 20 mm diam.; woody. Culm-internodes terete; thin-walled; 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. Culm-sheaths 15 cm long. Culm-sheath blade lanceolate; erect; 30 cm long; acuminate. Leaves 5-7 per branch. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose; flat; spreading; 8-12 mm long; dark. Ligule a ciliolate membrane; 0.3 mm long; pubescent on abaxial surface. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.3-0.5 cm long; petiole glabrous. Leaf-blades ovate; 18-23 cm long; 35-50 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; flexuous; bilateral; 10-15 cm long; bearing 6-12 fertile spikelets on each. Rhachis semiterete; glabrous on surface. Spikelet packing broadside to rhachis. Spikelets ascending; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 10-14 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 40-50 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes obscured by lemmas.
    Fertile
    Spikelets comprising 10-14 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 40-50 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes obscured by lemmas.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 4-6 mm long; 0.7-0.8 length of upper glume; chartaceous; without keels; 3 -veined. Lower glume apex acute. Upper glume ovate; 5-8 mm long; 0.5 length of adjacent fertile lemma; without keels; 5-7 -veined. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 13-16 mm long; chartaceous; without keel; 1-3 -veined. Lemma lateral veins obscure. Lemma apex acuminate. Palea 11-13 mm long. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3. Anthers 3; 3-4 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: northern South America.
    Reference
    Bambuseae. Jud. & Clarke 2001.

    Images

    Distribution

    Native to:

    Venezuela

    Arthrostylidium longiflorum Munro appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Fendler, A. [1/121?], Venezuela K000433127
    Fendler, A. [1621], Venezuela K000433129
    Mority? [s.n.], Colombia K000433128
    Sonder, H.W. [1685], Colombia K000433130
    Sonder, H.W. [1685], Colombia K000433132
    Sonder, H.W. [1393], Colombia K000433131

    First published in Trans. Linn. Soc. London 26: 41 (1868)

    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.

    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.

    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