1. Family: Poaceae Barnhart
    1. Hydrothauma C.E.Hubb.

      1. This genus is accepted, and its native range is S. DR Congo to Zambia.

    [FZ]

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

    Inflorescences
    Inflorescence a slender spiciform panicle, sometimes reduced to a unilateral raceme with paired spikelets.
    Spikelets
    Spikelets dorsally compressed.
    Glume
    Inferior glume 1/2 length of spikelet, hyaline, truncate, the superior equalling spikelet and gibbous.
    Lemma
    Superior lemma cartilaginous with flat margins.
    [GB]

    nonem

    Habit
    Annual. Culms decumbent, or prostrate; 10-20 cm long; spongy; rooting from lower nodes. Leaf-sheath auricles erect. Ligule an eciliate membrane. Leaf-blade base with a false petiole. Leaf-blades flaccid. Leaf-blade surface with ribs raised into sinuous lamellae.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; tip discoid.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; gibbous; 1.8-2.5 mm long; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; gibbous; 1.8-2.5 mm long; falling entire.
    Glume
    Glumes reaching apex of florets; thinner than fertile lemma. Lower glume oblate; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex truncate. Upper glume elliptic; gibbous; membranous; without keels; 7-9 -veined. Upper glume apex entire, or with a unilateral tooth.
    Florets
    Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret oblong; membranous; 7 -veined; emarginate. Fertile lemma elliptic; cartilaginous; without keel. Lemma lateral veins obscure. Lemma apex acute. Palea cartilaginous.
    Flowers
    Anthers 3.
    Distribution
    Africa.

    Images

    Distribution

    Native to:

    Zambia, Zaïre

    Hydrothauma C.E.Hubb. appears in other Kew resources:

    First published in Hooker's Icon. Pl. 35: t. 3458 (1947)

    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 Zambesiaca
    • in Ic. Pl. (Hook.) 35: t. 3458 (1947).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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