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  1. Family: Poaceae Barnhart
    1. Genus: Calamagrostis Adans.
      1. Calamagrostis brassii Hitchc.

        This species is accepted, and its native range is New Guinea.

    [GB]
    Habit
    Perennial; caespitose; clumped densely. Culms erect; 75 cm long; 3-4 -noded. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 4-6 mm long. Leaf-blades erect; involute; 1-3 mm wide; stiff. Leaf-blade apex pungent.
    Inflorescences
    Inflorescence a panicle. Peduncle antrorsely scabrous above. Panicle contracted, or spiciform; linear; 10-12 cm long. Primary panicle branches 2-4 cm long. Panicle axis scaberulous. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1 mm long; 0.1-0.2 length of lemma.
    Fertile
    Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose. Floret callus hairs 1 mm long; 0.1-0.2 length of lemma.
    Glume
    Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 5 mm long; 1 length of upper glume; coriaceous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume surface puberulous. Lower glume apex acuminate. Upper glume lanceolate; 5 mm long; 1.2 length of adjacent fertile lemma; coriaceous; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume surface puberulous. Upper glume apex acuminate.
    Florets
    Fertile lemma lanceolate; 4 mm long; membranous; without keel; 5 -veined. Lemma surface puberulous. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.25-0.33 way up back of lemma; geniculate; 5-6 mm long overall; with twisted column. Palea 0.8 length of lemma. Rhachilla extension 1 mm long; pilose.
    Flowers
    Lodicules 2. Anthers 3. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
    Distribution
    Asia-tropical: Papuasia.
    Reference
    Aveneae. Hitchcock 1994.

    Images

    Distribution

    Native to:

    New Guinea

    Synonyms

    Other Data

    Calamagrostis brassii Hitchc. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Brass, L.J. [4205], Papua New Guinea K000290485 isotype

    Bibliography

    First published in Brittonia 2: 116 (1936)

    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

    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    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