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This species is accepted, and its native range is E. Central & E. Tropical Africa.
A specimen from Kew's Herbarium

[FTEA]

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

Type
Type: Tanzania, Bukoba District: Karagwe, Speke & Grant 404 (K!, holo.) Type: Malawi, Shire Highlands, Buchanan 74 (K!, lecto., selected here)
Morphology General Habit
Perennial or shrubby herb with several unbranched or sparsely branched stems from woody rootstock; stems erect (rarely scrambling or decumbent), to 1.5 m tall, sparsely to densely uniformly puberulous (rarely sericeous), in subsp verticillaris usually also with stalked capitate glands and long pilose hairs
Morphology Leaves
Mature leaves ovate to elliptic or narrowly so (rarely obovate), largest 3–10.5 × 0.9–3.2(–4) cm, apex subacuminate to rounded, beneath uniformly puberulous or denser along veins or along veins only, above uniformly puberulous or sparsely so
Morphology Reproductive morphology Flowers
Flowers in condensed axillary 3–15-flowered cymes, usually 2 cymes per axil or solitary towards apex, cymes often congested towards tip of stems; peduncle and branches up to 3(–5) mm long, indumentum as stems; outer bracts elliptic or narrowly so, up to 2 cm long, sometimes with capitate glands; inner bracts and bracteoles linear to lanceolate, up to 1 cm long
Morphology Reproductive morphology Flowers Corolla
Corolla distinctly 2-lipped, pale mauve to mauve, pale purple to purple, blue to bluish purple (rarely white), usually with darker lines or spots on lower lip and in throat, palate distinctly bullate between veins, puberulent and with scattered capitate glands, 14–29(–37) mm long of which the linear tube 5–12(–14) mm, the throat 3–9(–12) mm and the limb 4–10(–13) mm, throat same length or 1–2 mm shorter than limb; lobes oblong, erect in upper lip, deflexed in lower
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Free part of filaments 2–8 mm long, hairy near base, glabrous upwards or hairy to apex; anthers pale violet or mauve, 1–3 mm long, spurs ± 1/4– 1/2 mm long often with 1–2 small subsidiary spurs or main spurs branched
Morphology Reproductive morphology Fruits
Capsule 8–12 mm long
Morphology Reproductive morphology Seeds
Seed 2–3 mm long
Figures
Fig 29, p193
Morphology Reproductive morphology Flowers Calyx
Calyx sparsely to densely puberulous with non-glandular hairs or with scattered non-viscid glands, usually without long pilose hairs; corolla 14–18 mm long. Calyx sparsely to densely puberulous with non-glandular hairs (subsp trichocalyx) or viscid glandular-puberulous (subsp verticillaris), also with or without long pilose non-glandular hairs, (8–)10–19(–21 in fruit) mm long; teeth (4–)5–12(–14 in fruit) mm long, same length or longer than tube Calyx usually viscid glandular-puberulous or densely so and usually with long non-glandular pilose hairs, if non-viscid then corolla over 20 mm long; corolla 17–29(–37) mm long.
Ecology
Brachystegia woodland, Combretum and Acacia bushland, grassland, dry riverine thicket; 175–2100 m Grassland, bushland and wooded grassland; 1350–1800 m
Distribution
Range: Congo-Kinshasa, Rwanda, Burundi Flora districts: U2 U4 K5 T1 T4 Range: Congo-Kinshasa, Zambia, Malawi, Mozambique, Zimbabwe Flora districts: T4 T5 T6 T7 T8

Native to:

Burundi, Kenya, Malawi, Mozambique, Rwanda, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Dyschoriste trichocalyx (Oliv.) Lindau appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 11, 1896 Speke [404], Tanzania K000393833 Unknown type material
Bridson, D. [258], Rwanda 43793.000
Kassner [2563], Congo K000393925 Unknown type material

First published in H.G.A.Engler (ed.), Pflanzenw. Ost-Afrikas, C: 367 (1895)

Accepted by

  • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.
  • 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.

Literature

Kew Backbone Distributions

  • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.

Flora of Tropical East Africa

  • Contrib. Fl. Katanga: 197 (1921)
  • De Wildeman, Notes Fl. Katanga 2: 71 (1913)
  • F.T.A. 5: 75 (1899)
  • Fl. Rwanda 3: 454, fig. 141, 4 (1985)
  • Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 480 (1997).
  • P.O.A. C: 367 (1895)
  • T.T.C.L.: 8 (1949)
  • U.K.W.F. ed. 2: 269 (1994)
  • U.K.W.F.: 585 (1974)

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