1. Family: Poaceae Barnhart
    1. Genus: Heteropogon Pers.
      1. Heteropogon ritchiei (Hook.f.) Blatt. & McCann

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

    [GB]
    Habit
    Annual. Culms 90-120 cm long. Leaf-sheaths keeled; glabrous on surface. Ligule an eciliate membrane; 4-6 mm long; brown; lacerate. Leaf-blades 15-45 cm long; 8-10 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy on both sides. Leaf-blade margins serrulate. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; erect; unilateral; 2.5-5 cm long. Rhachis fragile at the nodes. Rhachis internodes linear. Rhachis internode tip oblique. Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels oblong; semiterete; 0.2 mm long; 0.05 length of fertile spikelet.
    Sterile
    Basal sterile spikelets well-developed; 2-4 in number; larger than fertile. Basal sterile spikelet lower glume muticous. Companion sterile spikelets well-developed; male; lanceolate; dorsally compressed; 10-13 mm long; longer than fertile; separately deciduous. Companion sterile spikelet callus linear; 1 mm long; truncate. Companion sterile spikelet glumes chartaceous; eglandular; winged on margins; tuberculate; setose; with yellow hairs (4-5mm long); acute; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 4.5-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus linear; 2 mm long; bearded; base pungent; attached obliquely. Spikelet callus hairs dark brown. Basal sterile spikelets well-developed; 2-4 in number; larger than fertile. Basal sterile spikelet lower glume muticous. Companion sterile spikelets well-developed; male; lanceolate; dorsally compressed; 10-13 mm long; longer than fertile; separately deciduous. Companion sterile spikelet callus linear; 1 mm long; truncate. Companion sterile spikelet glumes chartaceous; eglandular; winged on margins; tuberculate; setose; with yellow hairs (4-5mm long); acute; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 4.5-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus linear; 2 mm long; bearded; base pungent; attached obliquely. Spikelet callus hairs dark brown.
    Glume
    Glumes dissimilar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma. Lower glume linear; 1 length of spikelet; coriaceous; dark brown; without keels. Lower glume surface pubescent. Lower glume apex truncate. Upper glume linear; coriaceous; without keels. Upper glume muticous.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 1 length of fertile lemma; hyaline; 0 -veined; without lateral veins; erose. Fertile lemma linear; 2-3 mm long; membranous; 1 -veined. Lemma apex entire; awned; 1 -awned. Principal lemma awn apical; geniculate; 30-40 mm long overall; with twisted column. Column of lemma awn pubescent. Palea absent or minute.
    Flowers
    Anthers 3; 3.5-4 mm long. Stigmas 2.
    Distribution
    Asia-tropical: India.
    Reference
    Andropogoneae. Deshpande.

    Images

    Distribution

    Native to:

    India, Myanmar

    Heteropogon ritchiei (Hook.f.) Blatt. & McCann appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1928 Ritchie, D. [884], Karnataka K000245946 holotype

    First published in J. Bombay Nat. Hist. Soc. 32: 623 (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.
    • 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.

    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 2019. 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 2019. 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