1. Family: Poaceae Barnhart
    1. Genus: Euclasta Franch.
      1. Euclasta oligantha (Hochst. ex Steud.) M.R.Almeida

        This species is accepted, and its native range is S. India, Myanmar.

    [GB]
    Habit
    Annual. Culms geniculately ascending, or decumbent; weak; 10-30 cm long; rooting from lower nodes. Ligule an eciliate membrane; 1.5 mm long. Leaf-blades 5-7.5 cm long; 2-3 mm wide. Leaf-blade midrib widened. Leaf-blade surface pilose; hairy on both sides; with tubercle-based hairs. Leaf-blade margins cartilaginous; scabrous. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Peduncle hirsute above; widened at apex. Racemes 1(-2); single; 2-3.5 cm long. Rhachis fragile at the nodes; flattened; ciliate on margins. Rhachis hairs white. Rhachis internodes linear; 2 mm long. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear; flattened; 2.25 mm long; without a translucent median line; ciliate.
    Spikelets
    Basal sterile spikelets well-developed; 6 in number; sessile and pedicelled; barren; elliptic; 4-5 mm long; larger than fertile. Basal sterile spikelet glumes chartaceous; glabrous, or pilose (at tip); lemmas awnless. Companion sterile spikelets well-developed; containing empty lemmas; elliptic; 4-5.5 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; 9-11 -veined; pilose (above); truncate. Companion sterile spikelet lemmas enclosed by glumes; muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; truncate; 4-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pilose; base obtuse; attached transversely.
    Sterile
    Basal sterile spikelets well-developed; 6 in number; sessile and pedicelled; barren; elliptic; 4-5 mm long; larger than fertile. Basal sterile spikelet glumes chartaceous; glabrous, or pilose (at tip); lemmas awnless. Companion sterile spikelets well-developed; containing empty lemmas; elliptic; 4-5.5 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; 9-11 -veined; pilose (above); truncate. Companion sterile spikelet lemmas enclosed by glumes; muticous.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; truncate; 4-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pilose; base obtuse; attached transversely.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 3.5 mm long; 0.9 length of spikelet; chartaceous; without keels; keel-less except near apex; 6 -veined. Lower glume surface convex, or flat; pubescent. Lower glume margins ciliate. Lower glume apex truncate. Upper glume lanceolate; chartaceous; 1-keeled.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 2.5-3 mm long; hyaline; 0 -veined; without midvein; without lateral veins. Fertile lemma linear; 1.5 mm long; hyaline; without keel; 1 -veined. Lemma apex entire; awned; 1 -awned. Principal lemma awn apical; geniculate; 30-35 mm long overall; with twisted column. Column of lemma awn puberulous; hairy on the spiral. Palea absent or minute.
    Flowers
    Anthers 3; 1 mm long.
    Fruits
    Caryopsis with adherent pericarp; obovoid; 2 mm long. Embryo 0.5 length of caryopsis. Hilum punctiform.
    Distribution
    Asia-tropical: India.
    Reference
    Andropogoneae. Bor.

    Images

    Distribution

    Native to:

    India, Myanmar

    Euclasta oligantha (Hochst. ex Steud.) M.R.Almeida appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1980 Hohenacker, R.F. [1288], Tamil Nadu Dichanthium oliganthum K000245651 isotype
    Hohenacker, R.F. [1288], Tamil Nadu Dichanthium oliganthum K000245832 isotype

    First published in Fl. Maharashtra 6A: 147 (2014)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    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