1. Family: Poaceae Barnhart
    1. Zonotriche (C.E.Hubb.) J.B.Phipps

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

    [FZ]

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

    Inflorescences
    Panicle bearing spikelets in triads with connate pedicels, the peduncle developing a fragile hook-like flexure at maturity and the triads falling entire.
    Spikelets
    Spikelets brown, the superior florets eventually disarticulating.
    Lemma
    Inferior lemma 5-nerved. Superior lemma with or without hair tufts, bilobed, with a persistent geniculate awn; callus short, broadly-rounded; palea keels with or without narrow wings, but these not clasped by the lemma.
    [GB]

    nonem

    Habit
    Perennial. Culms erect; 30.4-78.73-150 cm long. Ligule a fringe of hairs.
    Inflorescences
    Inflorescence a panicle. Panicle open. Panicle axis bearing deciduous spikelet clusters. Spikelets in threes. Fertile spikelets pedicelled; 3 in the cluster; subequal. Pedicels fused to each other.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 10-16.39-28 mm long; falling entire; deciduous in a cluster with fused pedicels. Floret callus evident; pilose (1/2), or bearded (1/2).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 10-16.39-28 mm long; falling entire; deciduous in a cluster with fused pedicels. Floret callus evident; pilose (1/2), or bearded (1/2).
    Glume
    Glumes shorter than spikelet (1), or reaching apex of florets (2), or exceeding apex of florets (2). Lower glume lanceolate; 0.7-0.8833-1 length of upper glume; coriaceous; without keels; 3 -veined, or 4-5 -veined (1). Lower glume surface hispid. Lower glume apex acuminate (2), or setaceously attenuate (1). Upper glume lanceolate; chartaceous; without keels; 3 -veined, or 4-5 -veined (1). Upper glume surface glabrous, or pubescent (1). Upper glume apex acuminate (2), or setaceously attenuate (1).
    Florets
    Basal sterile florets male; with palea. Lemma of lower sterile floret lanceolate; chartaceous; 5 -veined, or 6-7 -veined (2), or 8-9 -veined (1); acute (2), or acuminate (1). Fertile lemma oblong; coriaceous; without keel; 7-8 -veined (2), or 9 -veined. Lemma surface glabrous (2), or pubescent (1), or pilose (1); without hair tufts (1), or with a transverse row of hair tufts (2). Lemma margins eciliate, or ciliate (1). Lemma apex lobed; 2 -fid; incised 0.15-0.1667-0.2 of lemma length; acuminate (2/2), or attenuate (1/2), or setaceously attenuate (1/2); awned; 1 -awned (2), or 3 -awned (1). Principal lemma awn from a sinus; geniculate. Lateral lemma awns shorter than principal (1/1). Palea 2 -veined. Palea keels unthickened (1), or thickened (2); wingless (1), or winged (2). Palea surface glabrous (1), or pubescent (2).
    Flowers
    Anthers 3. Ovary glabrous (2), or pubescent on apex (1).
    Fruits
    Caryopsis with adherent pericarp; linear (2/2). Hilum linear.
    Distribution
    Africa.
    [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, flat, not crinkled on one margin; ligule a ciliate fringe
    Inflorescences
    Inflorescence a panicle, ± contracted, the spikelets ternate with connate pedicels; peduncles villous, developing a fragile hook-like flexure at maturity, the triads falling entire
    Spikelets
    Spikelets large, brown, villous with tubercle-based hairs, disarticulating beneath each floret, the lower floret ♂; glumes narrowly lanceolate, chartaceous to coriaceous, 3-nerved, ± persistent; lower lemma 5-nerved, 2/3–3/4 as long as the spikelet; upper lemma oblong-elliptic, thinly coriaceous, variously hairy, 5–9-nerved, bilobed, the lobes muticous or aristulate, with a persistent geniculate awn from the sinus; callus short, broadly rounded; stamens 3
    Fruits
    Caryopsis linear, the hilum linear.

    Images

    Distribution

    Native to:

    Angola, Malawi, Mozambique, Tanzania, Zambia, Zaïre, Zimbabwe

    Zonotriche (C.E.Hubb.) J.B.Phipps appears in other Kew resources:

    First published in Kirkia 4: 113 (1964)

    Literature

    Flora Zambesiaca
    • in Kirkia 4: 113 (1964).
    Flora of Tropical East Africa
    • Clayton in K.B. 21: 121 (1967)
    • in Kirkia 4: 113 (1964)

    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