1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis llanganatensis Laegaard

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

    [GB]
    Habit
    Perennial; caespitose; clumped loosely. Rhizomes short. Culms 120-150 cm long; 3 mm diam. Culm-internodes distally glabrous. Culm-nodes brown. Leaf-sheaths mostly shorter than adjacent culm internode; striately veined; glabrous on surface. Ligule an eciliate membrane; 3-4 mm long; scaberulous on abaxial surface; erose; obtuse. Leaf-blades 15-20 cm long; 6-10 mm wide. Leaf-blade surface ribbed; grooved adaxially; scabrous; rough on both sides.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; effuse; 40-50 cm long; 10-15 cm wide. Panicle branches capillary. Spikelets solitary. Fertile spikelets pedicelled. Pedicels flexuous; 5-8 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5-2.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 2.3 mm long; 1 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5-2.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 2.3 mm long; 1 length of lemma.
    Glume
    Glumes persistent; similar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma; shiny. Lower glume lanceolate; 1 length of upper glume; membranous; purple; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.5-2.7 mm long; 1.1 length of adjacent fertile lemma; membranous; purple; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 2.3 mm long; membranous; pallid; without keel; 0 -veined. Lemma surface scaberulous. Lemma apex erose; obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.33-0.5 way up back of lemma; straight; 1-1.5 mm long overall; not or scarcely exserted from spikelet. Palea 1.5 mm long; 0 -veined.
    Flowers
    Lodicules 2. Anthers 3; 1 mm long; purple. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Disseminule comprising a floret.
    Distribution
    South America: western South America.
    Reference
    Aveneae. Laegaard 2001.

    Images

    Distribution

    Native to:

    Ecuador

    Calamagrostis llanganatensis Laegaard appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1997 Laegaard, S. [55455], Ecuador K000308460 paratype

    First published in Novon 8: 26 (1998)

    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.
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.

    Literature

    Kew Backbone Distributions
    • Jørgensen, P.M. & León-Yánez, S. (eds.) (1999). Catalogue of the Vascular Plants of Ecuador Monographs in Systematic Botany from the Missouri Botanical Garden 75: i-viii, 1-1181.

    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