1. Family: Poaceae Barnhart
    1. Urelytrum Hack.

      1. This genus is accepted, and its native range is Tropical & S. Africa, Madagascar.

    [GB]

    nonem

    Habit
    Annual (1), or perennial (6). Culms erect; robust (1/1); 50-145.7-400 cm long. Leaf-sheath auricles absent (5), or erect (3). Ligule an eciliate membrane (6), or a ciliolate membrane (1). Leaf-blades stiff (2), or firm (5).
    Inflorescences
    Inflorescence composed of racemes. Racemes single (4), or paired (3), or digitate (3), or borne along a central axis (1). Rhachis fragile at the nodes; semiterete. Rhachis internodes linear (1), or oblong (3), or cuneate (3). Rhachis internode tip oblique; crateriform. Raceme-bases brief (3), or linear (4). Spikelets sunken (1/1); in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear (1), or oblong (3), or cuneate (3); tip cupuliform.
    Spikelets
    Companion sterile spikelets rudimentary (3), or well-developed (5); persistent. Companion sterile spikelet glumes muticous (2), or awned. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (3), or elliptic (1), or oblong (5); dorsally compressed; 5-7.871-11 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus brief (1), or square (1), or oblong (5); pubescent; base truncate (1), or obtuse (6); inserted.
    Sterile
    Companion sterile spikelets rudimentary (3), or well-developed (5); persistent. Companion sterile spikelet glumes muticous (2), or awned.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (3), or elliptic (1), or oblong (5); dorsally compressed; 5-7.871-11 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus brief (1), or square (1), or oblong (5); pubescent; base truncate (1), or obtuse (6); inserted.
    Glume
    Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate (1), or elliptic (6); coriaceous; without keels; 5 -veined (3/3). Lower glume surface convex, or flat (2); smooth (4), or spinose (4), or muricate (2); glabrous, or pubescent (2). Lower glume apex entire, or dentate (1); 2 -fid (1/1); acute. Upper glume ovate; membranous (1), or chartaceous (4), or scarious (1), or coriaceous (1); 1-keeled; 3 -veined. Upper glume primary vein eciliate (5), or ciliolate (1), or ciliate (1). Upper glume apex acute (1/1).
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret linear (1), or lanceolate (2), or oblong (4), or ovate (1); hyaline; 2 -veined; obtuse (1/1). Fertile lemma lanceolate (4), or oblong (3), or ovate (3); hyaline; without keel; 3 -veined. Lemma margins eciliate (4), or ciliolate (3). Lemma apex obtuse (1), or acute (6). Palea hyaline; 2 -veined (1/1).
    Flowers
    Anthers 3 (3/3).
    Distribution
    Africa.
    [FTEA]

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

    Habit
    Perennials, rarely annual
    Leaves
    Leaf-blades flat; ligule membranous
    Inflorescences
    Inflorescence of 1–many subdigitate (rarely paniculate) racemes; racemes cylindrical or slightly dorsally flattened, very fragile, moderately slender; internodes clavate, glabrous to pubescent, the top crateriform with a lobed scarious rim
    Sessile
    Sessile spikelet narrowly ovate to narrowly oblong; callus oblique, broadly obtuse to cuneate, pubescent, inserted into the top of the internode this concealing the hairs or almost so; lower glume coriaceous, broadly convex, the margins sharply inflexed becoming keeled towards the tip, wingless, without a prominent ciliate fringe, smooth on the back with the nerves raised at the tip only or not at all, often muricate on the sides, usually entire, exceptionally biaristulate; upper glume awnless; lower floret ♂; upper lemma entire and awnless
    Fruits
    Caryopsis ellipsoid
    Spikelets
    Pedicelled spikelet almost as long as the sessile or much reduced, its lower glume drawn out into a long curved awn, rarely awnless. Sessile spikelet narrowly ovate to narrowly oblong; callus oblique, broadly obtuse to cuneate, pubescent, inserted into the top of the internode this concealing the hairs or almost so; lower glume coriaceous, broadly convex, the margins sharply inflexed becoming keeled towards the tip, wingless, without a prominent ciliate fringe, smooth on the back with the nerves raised at the tip only or not at all, often muricate on the sides, usually entire, exceptionally biaristulate; upper glume awnless; lower floret ♂; upper lemma entire and awnless
    Pedicelled
    Pedicelled spikelet almost as long as the sessile or much reduced, its lower glume drawn out into a long curved awn, rarely awnless.
    [FZ]

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

    Habit
    Perennials, rarely annual (not in the Flora Zambesiaca area).
    Ligules
    Ligule membranous; leaf laminas flat or folded.
    Inflorescences
    Inflorescence terminal, composed of 1–many subdigitate (rarely paniculate) racemes; racemes cylindrical or slightly dorsally flattened, very fragile, moderately slender; rhachis internodes clavate, glabrous to pubescent, the summit crateriform with a lobed scarious rim.
    Spikelets
    Sessile spikelet narrowly ovate to narrowly oblong; callus oblique, broadly obtuse to cuneate, pubescent, inserted into the summit of the internode and mostly concealed by the rim; inferior glume coriaceous, broadly convex, the margins sharply inflexed and becoming keeled towards the apex, wingless or very narrowly winged, without a prominent ciliate fringe, smooth on the back, especially below, with the nerves raised only towards the apex or not at all, often muricate on the sides, usually entire, rarely biaristulate; superior glume awnless; inferior floret male with palea; superior lemma entire and awnless. Pedicelled spikelet almost as long as the sessile spikelet or much reduced, its inferior glume drawn out into a long curved awn, rarely awnless; pedicel free, resembling the internode.
    Fruits
    Caryopsis ellipsoid.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Caprivi Strip, Central African Repu, Congo, Free State, Ghana, Guinea, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mali, Mozambique, Namibia, Nigeria, Northern Provinces, Senegal, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Urelytrum Hack. appears in other Kew resources:

    First published in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 2(2): 22, 25 (1887)

    Literature

    Flora of West Tropical Africa
    • F.T.A. 9: 42 (1917).
    • in E. & P., Pflanzenfam. 2, 2: 25 (1889)
    Flora Zambesiaca
    • in Engler & Prantl, Nat. Pflanzenfam. II, 2: 25 (1887).
    Flora of Tropical East Africa
    • in E. & P.Pf. II.2: 25 (1889)

    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 2018. 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 2018. 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