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This species is accepted, and its native range is Ghana, Eritrea and NW. Tanzania.
A specimen from Kew's Herbarium

[FTEA]

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

Type
Type: Kenya, Kikemu (probably misprint for Kisumu), Linder 2639 (B†, holo.; K!, iso.)
Morphology General Habit
Erect or straggling to scandent shrubby herb to 1.3 m tall; young stems glabrous to finely sericeous-puberulous
Morphology Leaves
Leaves in whorls of 4; sessile or petiole up to 1 cm long; lamina ovate to elliptic or narrowly so, largest 4–13 × 1–4(–5) cm, apex acute to acuminate, the actual tip sometimes rounded, subglabrous to sparsely puberulous (rarely puberulous), densest on veins
Morphology Reproductive morphology Inflorescences
Spikes 1–5(–7) cm long; peduncles (1–)2–16(–21) cm long, finely puberulous-sericeous or sparsely so; fertile bracts elliptic or narrowly so, 10–20 × 3–9 mm, usually 2–3 times as long as wide, narrowing gradually to an acute tip with a straight mucro less than 0.5 mm long, finely puberulous or sparsely so and sparsely ciliate on edges, no stalked capitate glands, with 3–5 strong longitudinal veins and raised reticulum; bracteoles 9–16 mm long, finely puberulous and ciliate towards tip
Morphology Reproductive morphology Flowers Calyx
Sepals acuminate, pilose-ciliate towards tip, glabrous or sparsely puberulous towards tip, no capitate glands, dorsal broadly elliptic, 5–8 mm long, ventral ovate-elliptic, 7–10 mm long, lateral 3–6 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla pale red to vermillion, crimson or orange-red; tube 17–25 mm long, straight, not infundibuliform apically; limb 8–15 mm long
Morphology Reproductive morphology Fruits
Capsule 10–13 mm long
Morphology Reproductive morphology Seeds
Seed ± 3.5 × 3 mm.
Ecology
Dry Olea-Euclea forest and -scrub, Euclea-Acokanthera upland bushland, Grewia bushland, Acacia-Euphorbia woodland, often on rocky hills or along dry rocky riverbeds, dry riverine forest; 1100–2100 m
Note
C. massaica is closely related to C. nilotica, and the two were treated as subspecies by Napper (l.c.). But the separating characters are quite constant, and I have seen no intermediate specimens. It is true that the two have almost allopatric distributions in Tanzania and SW Kenya, but in Uganda, Sudan, NW Kenya and Ethiopia there is a considerable overlap. They also seem to have more or less identical habitat preferences, and I find it preferable to treat them as two distinct species.
Distribution
Flora districts: U1 U3 K1 K2 K3 K4 K5 K 6 T1 Range: Ghana, Sudan, Ethiopia

[FWTA]

Acanthaceae, H. Heine. Flora of West Tropical Africa 2. 1963

Morphology General Habit
A straggling shrub with bright salmon-pink flowers; undershrub on rocky hills (Morton).

Native to:

Eritrea, Ethiopia, Ghana, Kenya, Sudan, Tanzania, Uganda, Zaïre

Crossandra massaica Mildbr. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
11705.000
26260.000
Linder, D.H. [2639], Kenya K000394648 isotype

First published in J. Arnold Arbor. 11: 54 (1930)

Accepted by

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.

Literature

Flora of West Tropical Africa

  • J. K. Morton in J. W. Afr. Scl. Assoc. 2: 145 (1956).
  • in J. Arn. Arb. 11: 54 (1930)

Kew Backbone Distributions

  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Hepper, F.N. (ed.) (1963). Flora of West Tropical Africa, ed. 2, 2: 1-544.

Flora of Tropical East Africa

  • Biol. Skr. 51(2): 440 (2005)
  • Bot. Mag. (n. s.) 174: t. 404 (1962)
  • F.E.E. 5: 365 (2006).
  • F.P.N.A. 2: 294 (1947)
  • F.W.T.A. (ed. 2) 2: 409 (1963)
  • J. Arn. Arb. 11: 54 (1930)
  • K.B. 45: 511 (1990)
  • Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 476 (1997)
  • T.T.C.L.: 6 (1949)

Flora of Tropical East Africa
Flora of Tropical East Africa
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Flora of West Tropical Africa
Flora of West Tropical 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