1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis mandoniana (Wedd.) Pilg.

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

    [GB]
    Habit
    Perennial. Rhizomes elongated. Culms erect; 46-120 cm long. Culm-internodes smooth, or antrorsely scabrous. Leaf-sheaths smooth, or antrorsely scabrous. Ligule an eciliate membrane, or a ciliolate membrane; 2-12 mm long; obtuse, or acute, or acuminate. Leaf-blades flat, or convolute; 30-60 cm long; 3.3-3.6 mm wide. Leaf-blade venation with subepidermal sclerenchyma attached to veins above and below; without layer of subepidermal sclerenchyma masking vein striation. Leaf-blade surface scabrous; rough on both sides. Leaf-blade apex acute, or acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; linear; nodding; 24-52 cm long; 2-5 cm wide. Primary panicle branches ascending, or drooping; 10-16 cm long. Panicle axis smooth, or scaberulous. Panicle branches smooth, or scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1.2-6.6 mm long; smooth, or scaberulous.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 6.2-7.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.8-1.2 mm long; 0.15-0.3 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 6.2-7.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent. Floret callus hairs 0.8-1.2 mm long; 0.15-0.3 length of lemma.
    Glume
    Glumes persistent; similar; reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate; 6.2-7.8 mm long; 1.05 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume surface scabrous; rough above. Lower glume apex acute, or acuminate. Upper glume lanceolate; 5.8-7.6 mm long; membranous; purple; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume surface scabrous; rough above. Upper glume apex acute.
    Florets
    Fertile lemma lanceolate; 5-6.2 mm long; membranous; without keel; 5 -veined. Lemma surface scabrous; rough generally, or on veins. Lemma apex dentate; 2-4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.33-0.5 way up back of lemma; geniculate; 5-7.2 mm long overall; clearly exserted from spikelet; with a straight or slightly twisted column. Palea 4-5 mm long. Rhachilla extension 1.6-2.4 mm long; villous; with 3.2-4.2 mm long hairs.
    Flowers
    Lodicules 2. Anthers 3; linear; 2.2-2.6 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
    Distribution
    South America: western South America.
    Reference
    Aveneae. Villav 1996.

    Images

    Distribution

    Native to:

    Bolivia

    Calamagrostis mandoniana (Wedd.) Pilg. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Mandon, G. [1308], Bolivia K000308455
    Mandon, G. [1308], Bolivia K000308456

    First published in Bot. Jahrb. Syst. 49: 183 (1913)

    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.

    Literature

    Kew Backbone Distributions
    • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.

    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