1. Family: Acanthaceae Juss.
    1. Genus: Barleria L.
      1. Barleria mutabilis I.Darbysh.

        This species is accepted, and its native range is E. Tanzania to N. Mozambique.

    [FZ]

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

    Habit
    Perennial herb or shrub 50–150 cm tall; stems with dense buff-yellow to golden long-armed stellate hairs, arm typically 1–2 mm long, stellate base sometimes falling early, young stems with few to numerous spreading glandular hairs or these absent.
    Leaves
    Leaves ovate or elliptic, 3.3–13.5 × 1.4–6 cm, base attenuate or cuneate to obtuse or rounded, apex acute, subattenuate or obtuse, surfaces with long-armed stellate hairs as on stems, stellate base sometimes falling early particularly above, margin of young leaves sometimes with spreading glandular hairs; lateral veins 4–5 pairs, prominent beneath; petiole 2–12 mm long.
    Inflorescences
    Inflorescences axillary towards stem apex, sometimes together forming a loose thyrse, each cyme contracted, (2)3–12-flowered, unilateral or often branching at maturity; bracteole pairs spreading and often deflexed, linear, narrowly elliptic or oblanceolate, 5–20 × 0.8–4.5 mm, margin entire or minutely toothed, apex mucronate; pedicels 0–2.5 mm long.
    Calyx
    Calyx papery, at first bluish or purple-tinged with darker reticulate venation, soon pale-scarious; anterior lobe obovate, elliptic or (in our region) ovate-orbicular, 8–21.5 × 4.5–19.5 mm, base cuneate to truncate or rounded, margin subentire or denticulate, apex rounded to attenuate or emarginate, indumentum as leaves, glandular hairs mainly on margins and apex or absent; posterior lobe slightly larger, apex obtuse to attenuate, mucronulate; lateral lobes (ovate)lanceolate, 6.5–12.5 mm long.
    Corolla
    Corolla 26.5–46.5 mm long, pale blue or lilac to purple, glandular-pilose externally; tube cylindrical, 17–23 mm long, curved below attachment point of stamens; limb in 2+3 arrangement; abaxial lobe 12–18.5 × 9–14 mm; lateral lobes 14–19.5 × 10–14.5 mm; adaxial lobes 8–14.5 × 7–11 mm.
    Stamens
    Stamens attached 10–16 mm from base of corolla tube; filaments 12–16 mm long; anthers 3–5.2 mm long; lateral staminodes 1.2–3.5 mm long, pilose and with minute stalked glands, antherodes barely developed or to 0.8 mm long.
    Ovary
    Ovary with an apical tuft of short hairs, sometimes with a few pale hairs towards apex; style pubescent towards base; stigma clavate, 0.7–1.5 mm long.
    Fruits
    Capsule 13–16.5 mm long, sparsely pilose towards apex or with an apical tuft of hairs only.
    Seeds
    Seeds 4–5.5 × 3.8–4.5 mm.
    Distribution
    Also in E Tanzania.
    Ecology
    Riverine dry forest, in Tanzania recorded from low altitude woodland and wooded grassland; c.1000 m.
    Conservation
    Conservation notes: Scarce and known from only two specimens within the Flora area; originally assessed as Least Concern by Darbyshire (2010) (under B. fulvostellata subsp. scariosa).

    Images

    Distribution

    Native to:

    Mozambique, Tanzania

    Barleria mutabilis I.Darbysh. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Vollesen, K. [4617], Tanzania Barleria fulvostellata subsp. scariosa K000779564 isotype

    First published in Fl. Zambes. 8(6): 65 (2015)

    Accepted by

    • 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