1. Family: Poaceae Barnhart
    1. Stereochlaena Hack.

      1. This genus is accepted, and its native range is Tanzania to S. Africa.

    [FZ]

    Gramineae, W. D. Clayton. Flora Zambesiaca 10:3. 1989

    Inflorescences
    Inflorescence of paired or digitate racemes with narrowly winged triquetrous rhachis, bearing paired spikelets.
    Spikelets
    Spikelets narrowly lanceolate to oblong-elliptic.
    Glume
    Inferior glume minute or suppressed, the superior from very short to almost as long as spikelet and sometimes awned.
    Lemma
    Superior lemma cartilaginous with flat thin margins enfolding and concealing palea, acute to acuminate. Inferior lemma scabrid, prominently nerved, entire to tridentate, terminating in a straight awn.
    [FTEA]

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

    Habit
    Annuals or perennials
    Leaves
    Leaf-blades linear with cartilaginous margins; ligule short, membranous
    Inflorescences
    Inflorescence composed of digitate racemes; rhachis triquetrous, narrowly winged, bearing paired spikelets
    Spikelets
    Spikelets narrowly lanceolate to oblong-elliptic; lower glume a tiny truncate scale or suppressed; upper glume very short to almost as long as the spikelet and sometimes awned; lower floret barren, represented by a membranous lemma as long as the spikelet, scabrid on the back and terminating in a straight awn; upper lemma chartaceous, acute to acuminate, its flat thin margins enfolding and concealing the palea
    Fruits
    Caryopsis narrowly ellipsoid, dorsally flattened.
    [GB]

    nonem

    Habit
    Annual (1), or perennial (3). Culms erect (1/2), or geniculately ascending (2/2); 30-76.25-150 cm long. Ligule a ciliolate membrane. Leaf-blade margins cartilaginous.
    Inflorescences
    Inflorescence composed of racemes. Racemes single (1), or paired (1), or digitate; unilateral. Rhachis narrowly winged; angular. Spikelets appressed; in pairs. Fertile spikelets pedicelled; 2 in the cluster.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (3); dorsally compressed; 2.5-3.5-4.5 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (3); dorsally compressed; 2.5-3.5-4.5 mm long; falling entire.
    Glume
    Glumes one the lower absent or obscure; shorter than spikelet, or reaching apex of florets (1); thinner than fertile lemma. Upper glume elliptic (1), or ovate (3); membranous; without keels; 0-1 -veined (2/2). Upper glume apex obtuse (2), or acute (2), or acuminate (2); muticous (3), or awned (3); 1 -awned (3/3).
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate (1), or elliptic (3); membranous; 5 -veined (1), or 7 -veined (3); ribbed; acute (3/3); awned. Fertile lemma lanceolate (1), or elliptic (3); chartaceous; much thinner on margins; without keel; 3 -veined (1/1). Lemma margins covering most of palea. Lemma apex acute. Palea chartaceous.
    Distribution
    Africa.

    Images

    Distribution

    Native to:

    Angola, Botswana, Malawi, Mozambique, Northern Provinces, Tanzania, Zambia, Zimbabwe

    Stereochlaena Hack. appears in other Kew resources:

    First published in Proc. Rhodesia Sci. Assoc. 7(2): 65 (1908)

    Literature

    Flora Zambesiaca
    • Clayton in Kew Bull. 33: 295–297 (1978).
    • in Proc. Rhod. Sci. Ass. 7, 2: 65 (1908).
    Flora of Tropical East Africa
    • Clayton in K.B. 33: 295 (1978)
    • in Proc. Trans. Rhod. Sci. Ass. 7 (2): 65 (1908)

    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