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  1. Family: Poaceae Barnhart
    1. Genus: Germainia Balansa & Poitr.
      1. Germainia tenax (Balansa) Chai-Anan

        This species is accepted, and its native range is Indo-China.

    [GB]
    Habit
    Perennial; caespitose. Stolons present. Butt sheaths glabrous. Culms 15-30 cm long. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule a ciliate membrane; 0.5 mm long. Leaf-blades lanceolate; 2-4 cm long; 1-3 mm wide. Leaf-blade surface glabrous, or pubescent; hairy adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 2(-3); paired, or digitate; linear; 1-2 cm long; bearing many spikelets; bearing 6-14 fertile spikelets on each. Rhachis internodes filiform; 1 mm long. Spikelets in pairs. Fertile spikelets pedicelled; 1 in the cluster. Companion sterile spikelets sessile; 1 in the cluster. Pedicels 1-2 mm long.
    Spikelets
    Companion sterile spikelets well-developed; male; oblong; dorsally compressed; 3.2-4.5 mm long; longer than fertile; persistent. Companion sterile spikelet glumes chartaceous; 5(-6) -veined (lower); erose; truncate; muticous. Companion sterile spikelet lemmas 1-2; enclosed by glumes; 3.2-4.5 mm long; entire; muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2.5-3 mm long; falling entire. Spikelet callus brief; pilose; base obtuse. Spikelet callus hairs dark brown.
    Sterile
    Companion sterile spikelets well-developed; male; oblong; dorsally compressed; 3.2-4.5 mm long; longer than fertile; persistent. Companion sterile spikelet glumes chartaceous; 5(-6) -veined (lower); erose; truncate; muticous. Companion sterile spikelet lemmas 1-2; enclosed by glumes; 3.2-4.5 mm long; entire; muticous.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2.5-3 mm long; falling entire. Spikelet callus brief; pilose; base obtuse. Spikelet callus hairs dark brown.
    Glume
    Glumes similar; reaching apex of florets; firmer than fertile lemma. Lower glume oblong; 2.2-2.7 mm long; 0.9 length of upper glume; 0.9 length of spikelet; chartaceous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume surface pilose. Lower glume hairs dark brown. Lower glume apex obtuse. Upper glume oblong; 2.5-3 mm long; chartaceous; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume surface pilose. Upper glume hairs dark brown. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong, or ovate; 2.2-2.7 mm long; hyaline; entire, or dentate; 2 -fid; obtuse. Fertile lemma linear; hyaline; without keel. Lemma apex entire; awned; 1 -awned. Principal lemma awn geniculate; 3-4.7 mm long overall; with twisted column. Column of lemma awn 1.9-2.5 mm long; pubescent. Palea absent or minute.
    Flowers
    Lodicules absent. Anthers 2; 2.5 mm long.
    Fruits
    Caryopsis with adherent pericarp; 1.2 mm long. Embryo 0.5 length of caryopsis.
    Distribution
    Asia-tropical: Indo-China.
    Reference
    Andropogoneae. Chaianan.

    Images

    Distribution

    Native to:

    Cambodia, Laos, Thailand, Vietnam

    Synonyms

    Other Data

    Germainia tenax (Balansa) Chai-Anan appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 1971 Harmand, F.J. [29], Laos K000290142 isotype

    Bibliography

    First published in Thai Forest Bull., Bot. 6: 35 (1972)

    Accepted by

    • Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
    • 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

    • H?, P.-H. (2000). Câyc? Vi?tnam. An Illustrated flora of Vietnam, ed. 2, 3: 1-1020. Pham-hoang Ho, Montréal.
    • Camus, E.G. & Camus, A. in H. Lecomte (1922). Flore Générale de l'indo-Chine 1(3): 193-336.

    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