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This species is accepted, and its native range is SE. Tanzania to N. Mozambique.
A specimen from Kew's Herbarium

[FZ]

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

Morphology General Habit
Suffruticose herb, 20–60 cm tall, several ascending or erect unbranched stems from a woody rootstock; stems with long pale coarse hairs, spreading and subappressed, the latter ± concentrated in two opposite lines.
Morphology Leaves
Leaves oblong-elliptic or somewhat lanceolate, 7–11 × 1.8–2.8 cm, base cuneate, apex acute or obtuse, apiculate, indumentum as stem, hairs most dense on margin and veins beneath; lateral veins 5–6 pairs; petiole 0–4 mm long.
Morphology Reproductive morphology Inflorescences
Inflorescences single-flowered, axillary but crowded towards stem apex; bracts foliaceous; bracteoles narrowly oblong-elliptic or somewhat obovate, 14–40 × 2–10 mm, indumentum as leaves; pedicels 1–3 mm long.
Morphology Reproductive morphology Flowers Calyx
Anterior calyx lobe broadly ovate, 25–35 × 11–15 mm, base rounded or shallowly cordate, apex bifid with deltate-apiculate lobes 1.5–4 mm long, indumentum as leaves, hairs rather dense on veins and margin, hair bases often swollen, venation palmate, ± prominent; posterior lobe 31–41 × 14–17 mm, apex acute-apiculate; lateral lobes linear-lanceolate, 14–15 mm long.
Morphology Reproductive morphology Flowers Corolla
Corolla 62–67 mm long, white, limb with inconspicuous short glandular and eglandular hairs externally; tube cylindrical, 26–29 mm long, somewhat expanded towards mouth; limb in 4+1 arrangement; abaxial lobe c.30 × 17 mm, offset by 10–11.5 mm; lateral lobes c.28 × 13.5 mm; adaxial lobes c.24 × 13 mm.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens attached c.9 mm from corolla base; filaments 27–31 mm long; anthers 5–5.5 mm long; lateral staminodes 2–3 mm long.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary glabrous; stigma curved, c.2.5 mm long.
Morphology Reproductive morphology Fruits
Capsule and seeds not seen.
Distribution
Also in SE Tanzania.
Ecology
Miombo woodland with rock outcrops; c.700 m.
Conservation
Conservation notes: Assessed as Data Deficient in F.T.E.A., but very likely to be globally threatened as only known from two localities.

Native to:

Mozambique, Tanzania

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

Date Reference Identified As Barcode Type Status
Bidgood, S. [1988], Tanzania K000799434 isotype
Bidgood, S. [1988], Tanzania K000799433 holotype

First published in Fl. Trop. E. Africa, Acanth.(2): 397 (2010)

Accepted by

  • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2010). Flora of Tropical East Africa, Acanthaceae (Part 2): 287-756.
  • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.

Literature

Flora Zambesiaca

  • in F.T.E.A., Acanthaceae 2: 397 (2010).

Kew Backbone Distributions

  • Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.

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

Herbarium Catalogue Specimens
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 2021. 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 2021. 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