1. Family: Poaceae Barnhart
    1. Genus: Arthrostylidium Rupr.
      1. Arthrostylidium haitiense (Pilg.) Hitchc. & Chase

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; slender; 200-300 cm long; woody. Culm-internodes terete; thick-walled; antrorsely scabrous; 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. Leaf-sheath oral hairs scanty; deciduous. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.2 cm long; petiole pubescent. Leaf-blades deciduous at the ligule; lanceolate; 4-7 cm long; 3-6 mm wide. Leaf-blade surface glabrous. Leaf-blade margins smooth, or scaberulous. Leaf-blade apex obtuse; hairy.
    Inflorescences
    Inflorescence composed of racemes; terminal and axillary. Racemes 1; single; straight; bilateral; 5 cm long; bearing 4-8 fertile spikelets on each. Spikelet packing distant. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 2-3 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes clavate; 3 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 2-3 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes clavate; 3 mm long.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 6-6.5 mm long; chartaceous; without keels; 7 -veined. Lower glume apex obtuse. Upper glume lanceolate; 6-6.5 mm long; 7 -veined. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; persisting on inflorescence. Lemma of lower sterile floret similar to fertile lemma. Fertile lemma lanceolate, or ovate; 7-8 mm long; chartaceous; without keel; 7 -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. Pilger 1997.

    Distribution

    Native to:

    Dominican Republic, Haiti

    Arthrostylidium haitiense (Pilg.) Hitchc. & Chase appears in other Kew resources:

    First published in Contr. U.S. Natl. Herb. 18: 399 (1917)

    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