1. Family: Poaceae Barnhart
    1. Chrysochloa Swallen

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

    [GB]

    nonem

    Habit
    Annual (3), or perennial (1). Stolons absent (1), or present (3). Culms geniculately ascending (3/3), or decumbent (2/3); slender (1/1); 10-45.62-75 cm long; firm (3), or wiry (1); without nodal roots (1/1), or rooting from lower nodes (1/1). Culm-internodes elliptical in section (1/1). Lateral branches lacking (1/1), or sparse (1/1). Ligule a ciliolate membrane.
    Inflorescences
    Inflorescence composed of racemes. Racemes digitate; erect (1), or ascending; unilateral. Rhachis flattened (3), or angular (1); terminating in a spikelet (3), or sterile spikelet (1). Spikelet packing broadside to rhachis; 1-2 -rowed. Spikelets ascending (3/3); solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets oblong (1), or ovate (3); laterally compressed; 3-4-5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets oblong (1), or ovate (3); laterally compressed; 3-4-5 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes lower persistent, upper deciduous; reaching apex of florets, or exceeding apex of florets (2); thinner than fertile lemma. Lower glume ovate; not gibbous (3), or gibbous (1); 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.9-1.05-1.2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined (3), or 3-5 -veined (1). Upper glume apex emarginate (1), or acute (3); muticous (1), or mucronate (3), or awned (3); 1 -awned (3/3). Upper glume awn terminal (2/3), or subapical (1/3).
    Florets
    Fertile lemma ovate; laterally compressed; coriaceous; keeled; 3 -veined. Lemma midvein ciliate. Lemma surface smooth (3), or striate (1). Lemma margins ciliate. Lemma apex emarginate (1), or acute (3); mucronate (1), or awned (3); 1 -awned (3/3). Principal lemma awn apical (1), or subapical (3). Palea 2 -veined. Apical sterile florets 1 in number; male (1), or barren; lanceolate. Apical sterile lemmas muticous (3), or awned (1).
    Flowers
    Anthers 3.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid (3/3); trigonous (3/3).
    Distribution
    Africa.
    [FTEA]

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

    Habit
    Annuals or perennials, with erect or geniculately ascending culms
    Leaves
    Leaf-blades fairly broad, flat or folded, obtuse, occasionally apiculate; ligule a short membranous rim, ciliolate along the upper edge
    Inflorescences
    Inflorescence terminal, consisting of 1-many digitate 1-sided spikes bearing flattened imbricate spikelets
    Spikelets
    Spikelets 2-flowered, ovate in side view, strongly laterally compressed, yellowish green, the lower floret hermaphrodite, the upper floret sterile or ♂; glumes ovate-lanceolate (when flattened), subequal, keeled, boat-shaped, membranous, the upper broader than the lower and occasionally with a short subterminal awn, usually 1-nerved (more in C. orientalis), acute; fertile lemma as long as the glumes or slightly longer, broadly ovate (when flattened), coriaceous, strongly keeled, ciliate along the nerves with a conspicuous subapical awn projecting from the spikelet, or shortly mucronulate; upper floret reduced, with lanceolate lemma and palea
    Fruits
    Caryopsis ellipsoid or oblong, flattened on the back
    Distribution
    Species 4; tropical Africa.
    [FZ]

    Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999

    Inflorescences
    Inflorescence of 1–many digitate 1-sided racemes bearing imbricate spikelets on a flat rhachis.
    Spikelets
    Spikelets 2-flowered, strongly laterally compressed, sessile, in 1 row on a tough axis, disarticulating above the glumes; glumes subequal, membranous, keeled, enclosing the florets, acute to acuminate at the apex, the superior deciduous, sometimes with a short awn; fertile lemma coriaceous, keeled, mucronate or with a short subapical awn; distal floret well developed but male or sterile and smaller than the fertile.
    Fruits
    Caryopsis ellipsoid, trigonous.

    Images

    Distribution

    Native to:

    Angola, Burkina, Burundi, Cameroon, Central African Repu, Chad, Ghana, Ivory Coast, Kenya, Malawi, Mali, Niger, Nigeria, Rwanda, Senegal, Tanzania, Togo, Uganda, Zambia, Zaïre

    Chrysochloa Swallen appears in other Kew resources:

    First published in Proc. Biol. Soc. Washington 54: 44 (1941)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa
    • in Proc. Biol. Soc. Wash. 54: 44 (1941).
    Flora Zambesiaca
    • in Proc. Biol. Soc. Wash. 54: 44 (1941).
    Flora of Tropical East Africa
    • in Proc. Biol. Soc. Wash. 54: 44 (1941)

    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