1. Family: Poaceae Barnhart
    1. Genus: Pinga Widjaja
      1. Pinga marginata Widjaja

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

    [GB]
    Habit
    Perennial; caespitose; clumped loosely. Rhizomes short; pachymorph. Culms leaning; pendulous at the tip; 1500-2000 cm long; 10-25 mm diam.; woody; with aerial roots from the nodes. Culm-internodes terete; thin-walled; 35-50 cm long; mid-green; distally glabrous. Lateral branches dendroid; arising from mid culm. Bud complement 1. Branch complement two, or three; in a clump; with 1 branch dominant; thinner than stem. Culm-sheaths deciduous but leaving a persistent girdle (this rugose); 10-11 cm long; hairy on margins; auriculate; with obtuse auricles; with 2-3 mm high auricles; setose on shoulders; shoulders with 4-6 mm long hairs. Culm-sheath ligule entire, or ciliate. Culm-sheath blade ovate; narrower than sheath; erect; 6.5-7 cm long; 30-35 mm wide; glabrous on surface; acuminate. Leaf-sheath oral hairs ciliate; 10-15 mm long. Leaf-sheath auricles falcate; 0.5-1 mm long; obtuse. Ligule an eciliate membrane; 1 mm long. Collar with external ligule. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 17-41 cm long; 17-33 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
    Inflorescences
    Synflorescence bractiferous; clustered at the nodes; in globose clusters; with spathaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters.
    Spikelets
    Spikelets comprising 5-7 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; sparsely hairy.
    Fertile
    Spikelets comprising 5-7 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; sparsely hairy.
    Glume
    Glumes two; persistent; similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume ovate; 1.5-2.5 mm long. Lower glume apex acute. Upper glume ovate; 1.5-2.5 mm long. Upper glume apex acute.
    Florets
    Fertile lemma ovate; 3.5-4.5 mm long; without keel. Lemma surface glabrous. Lemma apex acuminate. Palea 4-5 mm long. Palea apex acute.
    Flowers
    Lodicules absent. Anthers 6; 2 mm long; yellow. Stigmas 3.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Asia-tropical: Papuasia.
    Reference
    Bambuseae. Widjaja 2002.

    Images

    Distribution

    Native to:

    New Guinea

    Pinga marginata Widjaja appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Widjaja, E.A. [6631], Irian Jaya K000290554 isotype

    First published in Reinwardtia 11: 124 (1997)

    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.

    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