1. Family: Poaceae Barnhart
    1. Streptogyna P.Beauv.

      1. This genus is accepted, and its native range is Tropical Africa, India, Sri Lanka, S. Mexico to S. Tropical America and Trinidad.

    [FTEA]

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

    Habit
    Erect perennials
    Leaves
    Leaf-blades linear to narrowly elliptic, finely acuminate, narrowed into a short false petiole, the nerves parallel to the midrib and transversely connected
    Inflorescences
    Raceme erect, linear, secund
    Spikelets
    Spikelets linear or narrowly oblong, subterete, 4–7-flowered, the lower 2–4 hermaphrodite, the upper shorter and barren; glumes persistent, unequal, shorter than the spikelet; lemmas at length rigidly coriaceous and terete, with a terminal awn; palea ± as long as the lemma; lodicules linear to oblong; stamens 2; stigmas long-exserted from the spikelet and tangled.
    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (1), or elongated (1). Culms erect; 30-97.5-150 cm long. Ligule an eciliate membrane. Leaf-blade base with a false petiole. Leaf-blades lanceolate. Leaf-blade venation with distinct cross veins.
    Inflorescences
    Inflorescence composed of racemes. Racemes single; unilateral. Rhachis semiterete. Spikelet packing broadside to rhachis; 1 -rowed. Spikelets appressed; solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 20-25-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; glabrous (1), or pubescent (1).
    Fertile
    Spikelets comprising 2-4 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 20-25-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; glabrous (1), or pubescent (1).
    Glume
    Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 0.2-0.35-0.5 length of upper glume; scarious; 1-keeled; 3 -veined. Lower glume apex acute. Upper glume lanceolate; 1 length of adjacent fertile lemma; scarious; 1-keeled; 9 -veined (1), or 17 -veined (1). Upper glume lateral veins with cross-veins. Upper glume apex acute; mucronate.
    Florets
    Fertile lemma oblong; subterete; coriaceous; without keel; 9 -veined. Lemma surface glabrous (1), or pilose (1). Lemma margins convolute; covering most of palea. Lemma apex dentate; truncate; awned; 1 -awned. Principal lemma awn from a sinus. Palea keels contiguous above a sulcus. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3; membranous; ciliate; obtuse. Anthers 2. Stigmas 2-3 (1); papillose (1), or retrorsely barbellate (1). Ovary glabrous (1), or pubescent on apex (1).
    Fruits
    Caryopsis with adherent pericarp; linear; isodiametric; biconvex; apex rostrate. Embryo 0.1 length of caryopsis. Hilum linear; 1 length of caryopsis.
    Distribution
    Africa (1), or Tropical Asia (1), or North America (1), or South America (1).

    Images

    Distribution

    Native to:

    Angola, Belize, Benin, Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Cameroon, Central African Repu, Colombia, Congo, Costa Rica, Equatorial Guinea, Ethiopia, French Guiana, Gabon, Ghana, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Honduras, India, Ivory Coast, Liberia, Mexico Gulf, Mexico Southeast, Nicaragua, Nigeria, Panamá, Peru, Senegal, Sierra Leone, Sri Lanka, Sudan, Suriname, Tanzania, Togo, Trinidad-Tobago, Uganda, Venezuela, Zaïre

    Streptogyna P.Beauv. appears in other Kew resources:

    First published in Ess. Agrostogr.: 80 (1812)

    Literature

    Flora of West Tropical Africa
    • Ess. Agrost. 80, t. 16, fig. 8 (1812).
    Flora of Tropical East Africa
    • Ess. Agrost.: 80, t. 16/8 (1812)

    Sources

    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