1. Family: Acanthaceae Juss.
    1. Genus: Barleria L.
      1. Barleria holubii C.B.Clarke

        This species is accepted, and its native range is W. Zimbabwe to Northern Prov.

    [FZ]

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

    Habit
    Very spiny shrub forming dense, rounded clumps, 15–150 cm tall; stems with short white spreading or retrorse hairs, evenly distributed or concentrated in two opposite lines.
    Spines
    Axillary spines 2–4-rayed, subsessile, longest ray 10–23 mm long.
    Leaves
    Leaves broadly obovate, 0.8–3 × 0.6–1.7 cm, base attenuate or cuneate, apex rounded or abruptly narrowed, mucronate, shortly spreading-pubescent at least beneath when young, with longer ascending or appressed hairs on margin and veins beneath; petiole 0–3 mm.
    Inflorescences
    Inflorescence axillary towards stem apex, flowers solitary, subsessile; bracts foliaceous; bracteoles spinose, (8.5)12–21 mm long, bracteoles of old inflorescence persisting.
    Calyx
    Anterior calyx lobe lanceolate, 8.5–13.5 × 2–3 mm, apex spinose or notched-spinose, surface with white spreading or retrorse hairs, with or without coarser ascending hairs along margin and short spreading glandular hairs towards apex, venation parallel; posterior lobe 9–14 mm long; lateral lobes narrower.
    Corolla
    Corolla salver-shaped, 30–37 mm long, yellow or pale orange, densely pubescent externally, limb with or without occasional glandular hairs; tube narrowly cylindrical, 20–26 mm long; limb subregular, lobes widely spreading; abaxial lobe 6.5–11.5 × 5–6.5 mm; lateral lobes 7–12 × 5–6 mm, adaxial lobes as abaxial but 3.5–5.5 mm wide.
    Stamens
    Stamens with filaments 8–9.5 mm long, pubescent in proximal half; anthers wholly or only partially exserted, 1.9–2.5 mm; lateral staminodes 0.6–1.5 mm, pubescent, antherodes 0.6–1 mm.
    Ovary
    Ovary glabrous; stigma c.0.5 mm long.
    Fruits
    Capsule 10.5–14.5 mm long, glabrous.
    Seeds
    Seeds c.7 × 5 mm.

    Images

    Distribution

    Native to:

    Botswana, Northern Provinces, Zimbabwe

    Barleria holubii C.B.Clarke appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 19, 1899 Holub, E. [s.n.], South Africa K000394533 holotype

    First published in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5: 47 (1901)

    Accepted by

    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.
    • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2010). Flora of Tropical East Africa, Acanthaceae (Part 2): 287-756.
    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Flora Zambesiaca
    • —Darbyshire in F.T.E.A., Acanthaceae 2: 440 (2010).
    • —Obermeijer in Ann. Transv. Mus. 15: 146 (1933).
    • in Fl. Cap. 5: 47 (1901).

    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