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This genus is accepted, and its native range is E. Tropical Africa, Madagascar.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Perennial or shrubby herbs; cystoliths conspicuous, ± dot-like; stem rounded or with weak longitudinal ridges
Morphology Leaves
Leaves opposite, subentire to crenate
Morphology Reproductive morphology Flowers
Flowers single or usually 2–3 (the third often only as an aborting bud), these cymules enveloped by two large partly fused foliaceous bracts and these again aggregated into a racemiform cyme; bracteoles present, filiform to linear
Morphology Reproductive morphology Flowers Calyx
Calyx deeply divided into 5 equal linear lobes. Corolla puberulous outside; basal tube curved, widening gradually into the throat; lobes 5, contorted in bud, 3 in lower lip deflexed, 2 in upper lip erect
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, subequal, inserted at base of throat, slightly exserted; anthers 2-thecous, narrowly oblong, slightly curved, thecae subequal, at same height, rounded at both ends
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2(?–4)-ovulate.
Morphology Reproductive morphology Flowers Gynoecium Style
Style puberulous.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma of 2 capitate lobes
Morphology Reproductive morphology Fruits
Capsule 2(?–4)-seeded, clavate with contracted stalk-like base, laterally flattened, breaking irregularly from base at maturity; retinaculae thin
Morphology Reproductive morphology Seeds
Seed discoid, glabrous with concentric ridges and jagged edge
Note
Winkler in F.R. 9: 523 (1911) states that the ovary is 2–4-ovulate and the capsule 2- or 4seeded. In the now plentiful East African material I have only seen 2 ovules and 2 seeds.
Distribution
Range: 2 species, one in Madagascar and one on the East African coast.

Native to:

Kenya, Madagascar, Tanzania

Chlamydacanthus Lindau appears in other Kew resources:

First published in Bot. Jahrb. Syst. 18: 58 (1893)

Accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

Literature

Flora of Tropical East Africa

  • E. & P. Pf. IV, 3b: 343, fig. 137 (1895)
  • E.J. 17: 109 (1893)
  • Syst. Bot. 26: 104 (2001)

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/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