1. Family: Poaceae Barnhart
    1. Genus: Chusquea Kunth
      1. Chusquea vulcanalis (Soderstr. & C.E.Calderón) L.G.Clark

        This species is accepted, and its native range is Costa Rica to Panama.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 500-1000 cm long; 10-25 mm diam.; woody; without nodal roots. Culm-internodes terete; thick-walled, or solid. Culm-nodes glabrous. Lateral branches dendroid; intravaginal. Branch complement several; in a clump; with subequal branches; thinner than stem. Culm-sheaths glabrous; without auricles. Culm-sheath ligule 1 mm high. Culm-sheath blade triangular. Leaves 3-4 per branch. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule an eciliate membrane; 3-5 mm long. Collar with external ligule. Leaf-blade base broadly rounded; with a brief petiole-like connection to sheath; petiole 0.1-0.3 cm long. Leaf-blades deciduous at the ligule; lanceolate; 6-19 cm long; 11-23 mm wide; coriaceous; dark green. Leaf-blade venation with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade margins cartilaginous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear; dense; 9-19 cm long; 1-2 cm wide. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2-3 mm long; scabrous.
    Spikelets
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 6.2-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 6.2-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.6-1 mm long; 0.5 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 1.2-1.5 mm long; 0.2 length of adjacent fertile lemma; without keels; 0-1 -veined. Upper glume primary vein absent, or obscure. Upper glume lateral veins absent. Upper glume apex obtuse.
    Florets
    Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 3.7-6.3 mm long; chartaceous; purple; 4-5 -veined; with unevenly spaced veins; scabrous; ciliolate on margins; acute; awned. Awn of lower sterile floret 0.5 mm long. Lemma of upper sterile floret ovate; 5-7.4 mm long; chartaceous; scabrous; ciliolate on margins; acute; awned. Awn of upper sterile floret 1 mm long. Fertile lemma ovate; 5.7-6.8 mm long; coriaceous; purple; without keel; 5 -veined. Lemma surface scabrous. Lemma margins ciliolate; hairy above. Lemma apex acute; mucronate. Palea 5.7-6.8 mm long; 4 -veined. Palea keels approximate. Palea apex dentate; 2 -fid.
    Flowers
    Lodicules 3; obovate; membranous; veined; ciliate. Anthers 3; 3.6-4.5 mm long; yellow. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; apex unappendaged.
    Distribution
    South America: Mesoamericana.
    Reference
    Bambuseae. Fl Costaric 1994.

    Distribution

    Native to:

    Costa Rica, Panamá

    Chusquea vulcanalis (Soderstr. & C.E.Calderón) L.G.Clark appears in other Kew resources:

    First published in Ann. Missouri Bot. Gard. 74: 428 (1987)

    Accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    Literature

    Kew Backbone Distributions
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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 2019. 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 2019. 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