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This genus is accepted, and its native range is Tropical Africa.
Whitfieldia elongata

[FTEA]

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

Morphology General Habit
Erect or scandent shrubs; cystoliths conspicuous or not, elongated to ± dot-like; stems rounded or subquadrangular
Morphology Leaves
Leaves opposite, with strongly raised midrib, with scattered sessile scale-like glands
Morphology Reproductive morphology Flowers
Flowers single, aggregated into terminal racemiform or paniculate cymes; bracts large or small, not strobilate, often whitish and caducous; bracteoles large, often whitish
Morphology Reproductive morphology Flowers Calyx
Calyx large, petaloid, often whitish, deeply divided into 5 subequal linear-oblong sepals
Morphology Reproductive morphology Flowers Corolla
Corolla large, puberulous and/or glandular on the outside, basal tube curved just below throat, long and linear or shorter, throat conspicuous; lobes 5, contorted in bud
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4 (but see note under W stuhlmannii), subequal or didynamous, inserted near base of throat, exserted or included; filaments linear; anthers 2-thecous, oblong, thecae subequal, rounded at both ends
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2locular, 4-ovulate.
Morphology Reproductive morphology Flowers Gynoecium Style
Style sparsely hairy, sometimes articulated just above ovary.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma of 2 capitate lobes
Morphology Reproductive morphology Fruits
Capsule 2–4-seeded, clavate, with solid contracted base, laterally flattened, glabrous
Morphology Reproductive morphology Seeds
Seed discoid, glabrous, with concentric ridges and jagged edge
Note
12 species in tropical Africa. Most diverse in the rainforests of the Guineo-Congolian Region.

Native to:

Angola, Benin, Cabinda, Cameroon, Central African Repu, Congo, Ethiopia, Gabon, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, Liberia, Mozambique, Nigeria, Rwanda, Sierra Leone, Sudan, Tanzania, Uganda, Zambia, Zaïre

Whitfieldia Hook. appears in other Kew resources:

First published in Bot. Mag. 71: t. 4155 (1845)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.
  • Grall, A. & Darbyshire, I. (2021). A synopsis of the African genus Whitfieldia (Acanthaceae: Whitfieldieae) and a key to the species Kew Bulletin 76: 191-221. Royal Botanic Gardens, Kew.

Literature

Flora of West Tropical Africa

  • —F.T.A. 5: 65.

Flora of Tropical East Africa

  • Belg. J.Bot. 125: 89 (1992)
  • Bot. Mag. 71: t. 4155 (1845)
  • DC., Prodr. 11: 220 (1847)
  • F.T.A. 5: 65 (1899)
  • G.P. 2: 1085 (1876)
  • 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