1. Family: Poaceae Barnhart
    1. Genus: Dichanthium Willemet
      1. Dichanthium armatum (Hook.f.) Blatt. & McCann

        This species is accepted, and its native range is W. India.

    [GB]
    Habit
    Annual; caespitose. Culms geniculately ascending; 30-45 cm long. Culm-nodes bearded. Ligule an eciliate membrane; 1-1.5 mm long. Leaf-blades 10-15 cm long; 4-6 mm wide. Leaf-blade surface pilose; hairy on both sides; with tubercle-based hairs.
    Inflorescences
    Inflorescence composed of racemes. Racemes 3-5; digitate; 1.3-3.8 cm long. Rhachis fragile at the nodes; subterete; ciliate on margins. Rhachis internodes linear. Raceme-bases filiform; dichotomously branched; 4-8 mm long; pilose; hairy in axils. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear; without a translucent median line; ciliate.
    Spikelets
    Basal sterile spikelets well-developed; 2 in number (lower raceme); 2 in upper raceme; male; elliptic; 3 mm long; equalling fertile. Basal sterile spikelet glumes chartaceous; tuberculate; setose; lemmas awnless. Companion sterile spikelets well-developed; male; elliptic; 3 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; tuberculate; setose (hairs 5-7mm long); ciliate on margins. Companion sterile spikelet lemmas enclosed by glumes; muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; obtuse; 3 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; attached transversely.
    Sterile
    Basal sterile spikelets well-developed; 2 in number (lower raceme); 2 in upper raceme; male; elliptic; 3 mm long; equalling fertile. Basal sterile spikelet glumes chartaceous; tuberculate; setose; lemmas awnless. Companion sterile spikelets well-developed; male; elliptic; 3 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; tuberculate; setose (hairs 5-7mm long); ciliate on margins. Companion sterile spikelet lemmas enclosed by glumes; muticous.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; obtuse; 3 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; attached transversely.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; cartilaginous; without keels. Lower glume surface convex; pitted (1 pit); pubescent; hairy below. Lower glume margins ciliate. Lower glume apex obtuse. Upper glume elliptic; cartilaginous; 1-keeled. Upper glume surface pubescent; hairy above. Upper glume apex acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret linear, or oblong; hyaline; obtuse. Fertile lemma linear; hyaline; without keel; 1 -veined. Lemma apex entire; awned; 1 -awned. Principal lemma awn apical; geniculate; 20-25 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.
    Flowers
    Anthers 3.
    Distribution
    Asia-tropical: India.
    Reference
    Andropogoneae. WDC.

    Images

    Distribution

    Dichanthium armatum (Hook.f.) Blatt. & McCann appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1928 Stocks, J.E. [s.n.], Karnataka K000245833 isotype
    Stocks, J.E. [s.n.], Karnataka K000245650 holotype

    First published in J. Bombay Nat. Hist. Soc. 32: 425 (1928)

    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.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.

    Literature

    Kew Backbone Distributions
    • 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