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This species is accepted, and its native range is W. Tropical Africa to Tanzania and Angola.

[FTEA]

Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Small tree 2.4–5 m. tall; branches angular, ± square in cross-section, almost glabrous or more usually covered with pale brown adpressed hairs, often with short white and brown streaks apparent on the bark.
Morphology Leaves
Leaf-blades discolourous, large, elliptic, 10–36 cm. long and 3.5–17.7 cm. wide, apex acute to shortly acuminate, base obtuse to cuneate or sometimes cordate, with 11–14 pairs of lateral nerves, glabrous above, sparsely pubescent and with ± densely adpressed pubescence on the nerves beneath; petioles (0–)0.3–1.7 cm. long, usually covered with adpressed hairs beneath or sometimes glabrous; stipules ± ovate above, narrower at the connate portion, 1.4–4.4 cm. long and 0.6–1.6 cm. wide, connate for 0.2–1.1 cm. above the node, apex obtuse.
Morphology Reproductive morphology Flowers
Flowers sessile, in ± 18-flowered fascicles, sub-sessile on a spike 4–17 cm. long; internodes 0.5–3 cm. long; peduncles 1.5–7.3 cm. long, densely adpressed hirsute, probably pendulous; bracteoles inconspicuous, ± deltoid and seldom larger than 1.2 mm. long and wide, pubescent or with the hairs confined to the margins.
Morphology Reproductive morphology Flowers Calyx
Calyx almost glabrous or with dense adpressed hairs on the tube, becoming sparser on the limb; tube ± cylindrical, 1.8–3 mm. long and 1.7–3.2 mm. wide; limb 1.6–3.6 mm. long, 2–5.5 mm. wide, truncate, shallowly undulate or shortly dentate, the dentations not exceeding 0.8 mm., sparsely hairy within.
Morphology Reproductive morphology Flowers Corolla
Corolla white or green; tube 8.5–15 mm. long, widening 5–9.5 mm. above the base, 1.4–3.8 mm. wide at base and 3.2–5.5 mm. wide at top, the wall of the lower, narrow portion distincdy lined with a whitish fawn thickened layer, glabrous or covered with adpressed hairs outside and with white or fawn, striated coarser hairs in the throat and a short distance up the lobes; lobes narrowly ovate or ovate, 2.7–5.8 mm. long and 1.4–2.3 mm. wide, long-acuminate or acute (in var. elephantina), glabrous or sparsely hairy.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 3.3–4.3 mm. long; apex 0.2–1.1 mm. long.
Morphology Reproductive morphology Flowers Disc
Disc shortly conical.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style 4–9 mm. long; stigma 3.75–5.6 mm. long.
Morphology Reproductive morphology Fruits Infructescences
Infructescences 4.5–17 cm. long; peduncles 4–9 cm. long; fascicles expanding to 5 cm. long; pedicels absent or accrescent and reaching 1 cm. long (in var. elephantina).
Morphology Reproductive morphology Fruits
Fruit greenish brown, ovoid, 6–11 mm. long and 6–9 mm. wide, glabrous or sparsely hairy (in var. elephantina).
Morphology Reproductive morphology Seeds
Seeds 0.9–1.1 mm. long.
Figures
Fig. 1/4 (but note drawing reversed, contortion should be to the left).

Native to:

Angola, Benin, Cabinda, Cameroon, Central African Repu, Congo, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Liberia, Nigeria, Rwanda, Sierra Leone, Tanzania, Togo, Uganda, Zaïre

Bertiera racemosa (G.Don) K.Schum. appears in other Kew resources:

First published in Bol. Soc. Brot. 10: 127 (1892)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Figueiredo, E. (2007). The Rubiaceae of Cabinda (Angola) Botanical Journal of the Linnean Society 154: 455-495.
  • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.
  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Harris, D.J. (2002). The vascular plants of the Dzanga-Sangha Reserve, Central African Republic: 1-274. National Botanic Garden (Belgium), Meise.
  • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.

Literature

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Harris, D.J. (2002). The vascular plants of the Dzanga-Sangha Reserve, Central African Republic: 1-274. National Botanic Garden (Belgium), Meise.
  • Ruhsam, M in Ruhsam, M. (2005). Survey of all the Rubiaceae specimens at the Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Bridson & Troupin in Fl. Pl. Lign. Rwanda: 544, fig. 182.1 (1982).
  • Bridson, Troupin & Verdc. in Fl. Rwanda 3: 142, fig. 42/1 (1985).
  • Hallé in Not. Syst. 16: 284, fig. 3/k, 4/m (1960).
  • Hallé, Fl. Gabon 17, Rubiacées, 2: 54, t. 12/11–14 (1970).
  • Hepper in Flora of West Tropical Africa, ed. 2, 2: 160 (1963).
  • K. Schum. in Bol. Soc. Brot. 10: 127 (1892).
  • W.J. Eggeling, Indigenous Trees of the Uganda Protectorate, ed. 2: 338 (1952).
  • Wernham in Journal of Botany 50: 160 (1912).

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