1. Family: Acanthaceae Juss.
    1. Genus: Barleria L.
      1. Barleria coriacea Oberm.

        This species is accepted, and its native range is SE. Botswana to Swaziland.

    [FZ]

    Flora Zambesiaca Acanthaceae (part 2) by Iain Darbyshire, Kaj Vollesen and Ensermu Kelbessa

    Habit
    Compact spiny subshrub 20–50 cm tall.
    Stem
    Stems white-puberulous when young, hairs concentrated on two opposite sides or more widespread, later glabrescent; base of stems woody and often stout.
    Spines
    Axillary spines 2-4(6)-rayed, stalk 0–2 mm long, longest ray (5.5)9–18.5 mm long.
    Leaves
    Leaves somewhat coriaceous, narrowly oblong or oblanceolate, 2.7–6.3 × 0.8–1.7 cm, base cuneate, apex acute or lower pairs more rounded, mucronate, margin and veins beneath strigulose when young, later glabrescent, broad sessile glands ± numerous towards base beneath; petiole 0-5 mm.
    Inflorescences
    Inflorescence axillary, flowers solitary, sometimes clustered towards stem apex, sessile; bracts foliaceous, often with more numerous and conspicuous sessile glands towards base; bracteoles whitish, spinose, 11.5–18.5 × 1.5–2.5 mm.
    Calyx
    Outer calyx lobes subequal, lanceolate, 10.5–15 × 3–5 mm, long-attenuate into apical spine, anterior lobe sometimes bifid, surface and margin sparsely strigulose or glabrescent, with scattered broad sessile glands, 2 (anterior) or 1 (posterior) veins prominent; lateral lobes 9–12 mm long.
    Corolla
    Corolla 29–34 mm long, yellow, glabrous externally or with sparse short hairs on tube; tube 10.5–13 mm long; limb in 4+1 arrangement; abaxial lobe offset by 4–6 mm, this and lateral lobes 12–16 × 7–12 mm; adaxial lobes 6–9.5 mm wide.
    Stamens
    Stamens with filaments 15-17.5 mm long, shortly pubescent; anthers 3.5–4.7 mm long; lateral staminodes 1–1.5 mm, pilose, antherodes 1–1.2 mm.
    Ovary
    Ovary glabrous; stigma linear, 1.5–2 mm long.
    Fruits
    Capsule 13–17 mm long, glabrous.
    Seeds
    Seeds 7–8 × 5.5–6.5 mm.
    Distribution
    Also in N South Africa (Limpopo and Gauteng) and Swaziland.
    Ecology
    Elsewhere in dry Acacia bushland, on limestone ridges and roadsides; c.1000 m.
    Conservation
    Conservation notes: Very localised and apparently scarce, known from few herbarium collections but appears tolerant of some disturbance. Galpin (13396) recorded it as "steadily spreading with overstocking and become a pest" near Naboomspruit, South Africa; probably Least Concern.

    Images

    Distribution

    Native to:

    Botswana, Northern Provinces, Swaziland

    Barleria coriacea Oberm. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 8, 1933 Nelson, W. [400], South Africa K000394538 paratype
    Nov 8, 1933 Nelson, W. [370], South Africa K000394539 isotype

    First published in Ann. Transvaal Mus. 15: 139 (1933)

    Accepted by

    • Darbyshire, I., Tripp, E.A. & Chase, F.M. (2019). A taxonomic revision of Acanthaceae tribe Barlerieae in Angola and Namibia. Part 1 Kew Bulletin 74(5): 1-85. Royal Botanic Gardens, Kew.
    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.

    Not accepted by

    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne. [Cited as Barleria prionitis.]

    Literature

    Flora Zambesiaca
    • —Compton, Fl. Swaziland: 552 (1976).
    • in Ann. Transv. Mus. 15: 139 (1933).
    Kew Backbone Distributions
    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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