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  1. Family: Poaceae Barnhart
    1. Thelepogon Roth

      1. This genus is accepted, and its native range is Tropical Africa to Namibia, India to Indo-China, S. Malesia.

    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Annual
    Leaves
    Leaf-blades broad; ligule shortly membranous
    Inflorescences
    Inflorescence a terminal bunch of shortly pedunculate racemes; internodes thickened, clavate, glabrous
    Sessile
    Sessile spikelet dorsally compressed; callus obtuse and fitting the concave top of the internode; lower glume crustaceous, convex, without keels or wings; upper glume broadly convex across the back, wingless; lower floret ♂, with hyaline lemma and well-developed palea; upper lemma bifid, passing between the teeth into a glabrous awn
    Fruits
    Caryopsis ellipsoid
    Spikelets
    Pedicelled spikelet absent, represented only by a flattened linear pedicel. Sessile spikelet dorsally compressed; callus obtuse and fitting the concave top of the internode; lower glume crustaceous, convex, without keels or wings; upper glume broadly convex across the back, wingless; lower floret ♂, with hyaline lemma and well-developed palea; upper lemma bifid, passing between the teeth into a glabrous awn
    Pedicelled
    Pedicelled spikelet absent, represented only by a flattened linear pedicel.
    [FZ]

    Gramineae, T. A. Cope. Flora Zambesiaca 10:4. 2002

    Habit
    Annual; ligule shortly membranous; leaf laminas broad.
    Inflorescences
    Inflorescence a terminal cluster of shortly pedunculate racemes; rhachis internodes thickened, clavate, glabrous.
    Spikelets
    Sessile spikelet dorsally compressed; callus obtuse and fitting the concave apex of the internode; inferior glume crustaceous, convex across the back, coarsely rugose, without keels or wings; superior glume broadly convex across the back, rugose, wingless; inferior floret male, with hyaline lemma and well developed palea; superior lemma bifid, passing between the teeth into a glabrous awn. Pedicelled spikelet absent, represented only by a flattened linear pedicel.
    Fruits
    Caryopsis ellipsoid.
    [GB]

    nonem

    Habit
    Annual. Culms erect; 10-92.5-150 cm long. Lateral branches sparse (1/1). Ligule a ciliolate membrane. Leaf-blades lanceolate.
    Inflorescences
    Inflorescence composed of racemes. Racemes single (1), or paired (1), or digitate; bearing 10-13 fertile spikelets on each (1/1). Rhachis fragile at the nodes; angular. Rhachis internodes linear (1), or cuneate (1). Rhachis internode tip transverse; cupuliform. Raceme-bases filiform. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear.
    Sterile
    Companion sterile spikelets represented by barren pedicels.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets. Spikelets lanceolate (1), or elliptic (1), or ovate (1); dorsally compressed; 5-7.75-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent (1), or pilose (1); base obtuse; inserted. Companion sterile spikelets represented by barren pedicels.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets. Spikelets lanceolate (1), or elliptic (1), or ovate (1); dorsally compressed; 5-7.75-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent (1), or pilose (1); base obtuse; inserted.
    Glume
    Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; indurate; without keels; 7 -veined (1), or 9 -veined (1). Lower glume surface muricate (1), or rugose (1). Lower glume apex acute. Upper glume elliptic (1), or ovate (1); chartaceous; without keels (1), or 1-keeled (1); 3 -veined. Upper glume surface smooth (1), or rugose (1). Upper glume apex acuminate.
    Florets
    Basal sterile florets male; with palea (1), or without significant palea (1). Lemma of lower sterile floret lanceolate (1), or elliptic (1); hyaline; 2 -veined (1/1). Fertile lemma lanceolate (1), or ovate (1); hyaline; without keel; 5 -veined (1/1). Lemma apex lobed; 2 -fid; incised 0.5 of lemma length; awned. Principal lemma awn from a sinus; geniculate. Palea hyaline; without keels.
    Distribution
    Africa (1), or Tropical Asia (1), or Australasia (1).

    Images

    Distribution

    Native to:

    Angola, Benin, Burkina, Cameroon, Central African Repu, Chad, Congo, Eritrea, Ethiopia, Ghana, Guinea, India, Jawa, Lesser Sunda Is., Malawi, Mozambique, Myanmar, Namibia, Niger, Nigeria, Senegal, Sudan, Tanzania, Thailand, Togo, Uganda, Zambia, Zimbabwe

    Introduced into:

    Pakistan

    Accepted Species

    Other Data

    Thelepogon Roth appears in other Kew resources:

    Bibliography

    First published in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15 bis 2: 46 (1817)

    Accepted by

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

    Literature

    Flora of West Tropical Africa

    • F.T.A. 9: 34 (1917).
    • Syst. Veg. 2: 46 (1817)

    Flora Zambesiaca

    • Syst. Veg. 2: 46 (1817).

    Flora of Tropical East Africa

    • Syst. Veg. 2: 46 (1817)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/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