1. Family: Poaceae Barnhart
    1. Genus: Coelachne R.Br.
      1. Coelachne infirma Buse

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

    [GB]
    Habit
    Annual; mat forming. Culms prostrate; weak; 5-15 cm long; rooting from lower nodes. Culm-nodes bearded. Leaf-sheaths 1-1.5 cm long. Ligule a fringe of hairs. Leaf-blades linear, or lanceolate; 1.5-2.5 cm long; 5 mm wide. Leaf-blade midrib indistinct. Leaf-blade surface glabrous, or pubescent; hairy adaxially.
    Inflorescences
    Inflorescence a panicle. Panicle contracted; linear; interrupted; 5-10 cm long. Primary panicle branches 0.5-1.5 cm long; bearing 2-9 fertile spikelets on each lower branch; bearing spikelets almost to the base. Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.2-0.8 mm long.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong, or ovate; laterally compressed; 2-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus 0.6 mm long; glabrous.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong, or ovate; laterally compressed; 2-2.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus 0.6 mm long; glabrous.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume orbicular; 1.2 mm long; 0.8 length of upper glume; 0.5 length of spikelet; membranous; without keels; 1-3 -veined. Lower glume apex obtuse. Upper glume orbicular; 1.5 mm long; 0.5 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex obtuse.
    Florets
    Fertile florets female (upper); with the lowest dissimilar. Lowest fertile lemma bisexual; ovate; 1.5 length of adjacent lemma; firmer than adjacent lemma; hairy (below); mucronate. Fertile lemma ovate; 1 mm long; membranous; without keel; 3-5 -veined. Lemma lateral veins obscure. Lemma surface pubescent; hairy below. Lemma apex acute. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate.
    Flowers
    Anthers 2; 0.6-1.1 mm long.
    Fruits
    Caryopsis with adherent pericarp; fusiform; dark brown. Embryo 0.33 length of caryopsis. Hilum punctiform.
    Distribution
    Africa: western Indian ocean. Asia-temperate: China. Asia-tropical: India, Indo-China, Malesia, and Papuasia.
    Reference
    Isachneae. Gilliland 1993.

    Images

    Distribution

    Native to:

    Jawa, Madagascar, Maluku, New Guinea, Philippines, Sulawesi, Sumatera

    Coelachne infirma Buse appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jul 1, 2002 Junghuhn, F.W. [117], Jawa K001056280 isotype
    Aug 26, 1986 Elmer, A.D.E. [5752], Philippines Coelachne hackelii K001056277 holotype
    Aug 26, 1986 Elmer, A.D.E. [5752], Philippines Coelachne hackelii K001056279 isotype
    Merrill, E.D. [4338], Philippines Coelachne hackelii K001056278

    First published in F.A.W.Miquel, Pl. Jungh., prepr.: 10 (1854)

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

    Literature

    Kew Backbone Distributions
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • 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 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