1. Family: Poaceae Barnhart
    1. Genus: Isachne R.Br.
      1. Isachne villosa (Hitchc.) Reeder

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

    [GB]
    Habit
    Annual. Culms decumbent; 10-40 cm long; rooting from lower nodes. Culm-nodes bearded. Leaf-sheaths pilose; with tubercle-based hairs; outer margin hairy. Ligule a fringe of hairs; 1-2 mm long. Leaf-blades lanceolate; 1.5-10 cm long; 3-7 mm wide. Leaf-blade surface hirsute.
    Inflorescences
    Inflorescence a panicle. Panicle open; ovate; 3-12 cm long. Primary panicle branches ascending. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 1.2-1.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes terete.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 1.2-1.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes terete.
    Glume
    Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic, or obovate; 1.2-1.7 mm long; 1 length of upper glume; 1 length of spikelet; membranous; without keels. Lower glume surface puberulous. Lower glume apex obtuse. Upper glume elliptic, or obovate; 1.2-1.7 mm long; 1 length of adjacent fertile lemma; membranous; without keels. Upper glume surface puberulous. Upper glume apex obtuse.
    Florets
    Fertile lemma ovate; 1-1.5 mm long; coriaceous; without keel. Lemma surface papillose; puberulous. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.
    Flowers
    Anthers 3.
    Distribution
    Asia-tropical: Papuasia.
    Reference
    Isachneae. Reeder 1993.

    Distribution

    Native to:

    New Guinea, Solomon Is.

    Isachne villosa (Hitchc.) Reeder appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1963 Cruttwell, N.E.G. [1369], Papua New Guinea K000482981
    Brass, L.J. [23210], Papua New Guinea K000482982
    Brass, L.J. [24589], Papua New Guinea K000482983
    Clemens, J. [4860], Papua New Guinea K000482984
    Dennis, G. [7857], Solomon Is. K000482988
    Craven, L.A. [338], Papua New Guinea K000482986
    Hartley, T.G. [11,677], Papua New Guinea K000482980
    Braithwaite, A.F. [4805], Solomon Is. K000482987

    First published in J. Arnold Arbor. 29: 314 (1948)

    Accepted by

    • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Iskandar, E.A.P. & Veldkamp, J.F. (2004). A revision of Malesian Isachne sect. Isachne (Gramineae, Panicoideae, Isachneae) Reinwardtia 12: 159-179.
    • 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. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, 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.

    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