1. Family: Poaceae Barnhart
    1. Genus: Arthrostylidium Rupr.
      1. Arthrostylidium angustifolium Nash

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; slender; 200-300 cm long; woody. Culm-internodes terete; thick-walled; smooth; distally glabrous. Lateral branches fastigiate. Branch complement many; in a clump; subtended by a bare patch above the node; with subequal branches. Leaf-sheaths glabrous on surface; outer margin hairy. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 4-5 mm long; lacerate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; conduplicate; 15-25 cm long; 2-4 mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes; terminal and axillary. Racemes borne along a central axis; straight; bilateral; 4-6 cm long; bearing 3 fertile spikelets on each. Central inflorescence axis 20-30 cm long. Spikelet packing lax. Spikelets solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 4-8 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 22-30 mm long; 2-2.5 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2.5-3 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 4-8 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 22-30 mm long; 2-2.5 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2.5-3 mm long.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume ovate; chartaceous; without keels. Lower glume apex acuminate. Upper glume lanceolate. Upper glume apex acuminate.
    Florets
    Basal sterile florets barren; persisting on inflorescence. Lemma of lower sterile floret similar to fertile lemma. Fertile lemma lanceolate, or ovate; 5-7 mm long; chartaceous; without keel; 9 -veined. Lemma apex acute; mucronate. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3. Anthers 3. Stigmas 2. Ovary umbonate.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: Caribbean.
    Reference
    Bambuseae. Nash 1997.

    Distribution

    Arthrostylidium angustifolium Nash appears in other Kew resources:

    First published in Torreya 3: 172 (1903)

    Accepted by

    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.
    • 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
    • Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies Smithsonian Contributions to Botany 98: 1-1192.

    Sources

    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 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