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  1. Family: Poaceae Barnhart

    1. Thelepogon Roth

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

    [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, Queensland, Senegal, Sudan, Tanzania, Thailand, Togo, Uganda, Zambia, Zimbabwe

    Introduced into:

    Pakistan

    Thelepogon Roth appears in other Kew resources:

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

    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 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