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This species is accepted, and its native range is Central African Republic, Tanzania to S. Tropical Africa.
A specimen from Kew's Herbarium

[FTEA]

Acanthaceae (part 2), Kaj Vollesen. Flora of Tropical East Africa. 2008

Type
Types: Malawi, Blantyre, Buchanan 103 (K!, BM!, syn.) & Dewèvre s.n. (BR!, syn.); Mt Chiradzulu, Whyte s.n. (K!, syn.); Nyika Plateau, Whyte s.n. (K!, syn.); Manganja Hills, Meller s.n. (K!, syn.)
Morphology General Habit
Perennial or shrubby herb, sometimes scrambling, to 1.5 m tall; stems subglabrous to densely pubescent with broad glossy hairs
Morphology Leaves
Leaves with petiole distinct, up to 10 cm long; lamina ovate to cordiform or broadly so, largest 8–14 × 5.5–10.5 cm, margin grossly and often irregularly dentate, apex acute to acuminate, base subcordate or cordate, often with unequal sides, beneath sparsely pubescent to tomentose with broad glossy hairs, above subglabrous to sparsely pubescent, densest along veins
Morphology Reproductive morphology Inflorescences
Panicle narrowly to broadly pyramidal, up to 30 cm long, sticky; axes, peduncles and pedicels glandular-pubescent or densely so; dichasia many-flowered at base of panicle, gradually fewer upwards; peduncles up to 17 mm long; pedicels 1–2 mm long; bracteoles up to 15 mm long
Morphology Reproductive morphology Flowers Calyx
Calyx 16–25 mm long of which the basal fused part 1–3 mm, glandular-puberulous to pubescent or densely so; lobes linear-oblong (rarely) to spathulate, rounded to truncate
Morphology Reproductive morphology Flowers Corolla
Corolla blue to purple, pleated area yellow, 35–43 mm long, cylindric tube 10–15 mm, throat 8–11 mm, middle lobe of lower lip triangular, acute, 10–15 × 12–14 mm, lateral lobes triangular, acute, 10–14 × 6–10 mm, held vertically, lobes in upper lip elliptic-oblong or obovate, rounded, 10–15 × 4–6 mm
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Free part of filaments 3–5 mm long, fused for ± 1 mm at base, sparsely glandular throughout; anthers ellipsoid, 3–4.5 mm long, glandular on connective, otherwise glabrous, apiculate or with minute spurs to 1/4 mm long. Stigma 1–2 mm long
Morphology Reproductive morphology Fruits
Capsule 15–19 mm long, glandular near apex
Morphology Reproductive morphology Seeds
Seed oblong, ± 3 × 2.5 mm.
Ecology
Ravines and rocky slopes, riverine forest and scrub; 1050–1700(–1900) m
Distribution
Flora districts: T2 T4 T5 T7 Range: Congo-Kinshasa, Zambia, Malawi, Zimbabwe

Native to:

Central African Repu, Malawi, Tanzania, Zambia, Zaïre, Zimbabwe

Mellera submutica C.B.Clarke appears in other Kew resources:

Date Reference Identified As Barcode Type Status
May 1, 2007 Abeid, Y.S. [2193], Tanzania K000438394
Jul 1, 1897 Whyte, A. [s.n.], Malawi K000394150 syntype
Fanshawe, D.B. [2430], Zimbabwe 11706.000
Buchanan, J. [103], Malawi K000394149 syntype
[illegible] [s.n.], Malawi K000394151 syntype
Meller, C.J. [s.n.], Malawi K000394152 syntype
Meller, C.J. [s.n.], Malawi K000394153 syntype
Whyte, A. [s.n.], Malawi K000394154 syntype

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 5: 51 (1899)

Accepted by

  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
  • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.
  • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.
  • Vollesen, K. (2013). Flora Zambesiaca 8(5): 1-184. Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
  • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.
  • Vollesen, K. (2013). Flora Zambesiaca 8(5): 1-184. Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Binns, Checklist Herb. Fl. Malawi: 15 (1968)
  • De Wildeman, Etud. Fl. Katanga 1: 143, pl. 11, fig. 1 (1903)
  • F.T.A. 5: 51 (1899)
  • Fanshawe, Checklist Woody Pl. Zambia: 35 (1970).
  • Richards & Morony, Checklist Fl. Pl. Mbala Distr.: 233 (1969)
  • Th. & H. Durand, Syll. Fl. Congo: 418 (1909)

Flora of Tropical East Africa
Flora of Tropical East Africa
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