1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis srilankensis Davidse

        This species is accepted, and its native range is Sri Lanka.

    [GB]
    Habit
    Perennial; caespitose. Culms erect; 35-70 cm long. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 2-3.5 mm long; scaberulous on abaxial surface. Leaf-blades 4-8 cm long; 2-4 mm wide. Leaf-blade surface scaberulous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle. Panicle open; elliptic, or ovate; 5-13 cm long; 2-3.5 cm wide. Primary panicle branches spreading; whorled at lower nodes; 3-6 cm long. Panicle branches smooth, or scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 3-7 mm long.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 2.7-3.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 0.6-1.5 mm long.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 2.7-3.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 0.6-1.5 mm long.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 2.7-3.5 mm long; 1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 2.5-3 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acuminate.
    Florets
    Fertile lemma elliptic, or ovate; 2.1-2.8 mm long; membranous; without keel; 5(-7) -veined. Lemma apex dentate; emarginate, or truncate; muticous, or awned; 1 -awned. Principal lemma awn dorsal; arising 0.33 way up back of lemma; 1-2 mm long overall; not or scarcely exserted from spikelet. Palea 1.8-2.3 mm long; hyaline; 2 -veined. Rhachilla extension 0.3-0.7 mm long; pilose; with 0.6-1.5 mm long hairs.
    Flowers
    Lodicules 2. Anthers 3; 1-1.3 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; oblong; 1.3 mm long. Hilum punctiform.
    Distribution
    Asia-tropical: India.
    Reference
    Aveneae. Fl Ceyl 1993.

    Images

    Distribution

    Native to:

    Sri Lanka

    Calamagrostis srilankensis Davidse appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Davidse, G. [7681], Sri Lanka K000838332 isotype

    First published in M.D.Dassanayake & al. (eds.), Revis. Handb. Fl. Ceylon 8: 107 (1994)

    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.
    • Dassanayake (ed.) (1994). A Revised Handbook to the Flora of Ceylon 8: 1-458. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.

    Literature

    Kew Backbone Distributions
    • Dassanayake (ed.) (1994). A Revised Handbook to the Flora of Ceylon 8: 1-458. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.

    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