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

[FTEA]

Apocynaceae, E.A. Omino. Flora of Tropical East Africa. 2002

Morphology General Habit
Shrubs or lianas, glabrous in all parts; white latex present in most parts
Morphology Leaves
Leaves opposite; petiole with a single row of colleters in the axils
Morphology Reproductive morphology Inflorescences
Inflorescences one or two, at branch apex just below its ramification, pendulous, pedunculate, cymose, congested
Morphology Reproductive morphology Flowers
Flowers actinomorphic
Morphology Reproductive morphology Flowers Corolla
Corolla white; lobes in bud overlapping to the left
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens included; anthers introrse, narrowly oblong, apiculate or obtuse,auriculate at the base
Morphology Reproductive morphology Flowers Gynoecium Pistil
Pistil glabrous; ovary broadly ovoid, of 2 almost free carpels, surrounded at the base by a shallowly lobed almost free disk; pistil head composed of a 5-ribbed or -winged clavuncular body, each wing between the auriculae of the anther, stigma obscure
Morphology Reproductive morphology Fruits
Fruit berry-like, many-seeded, the two mericarps free or partly connate, yellow to orange; wall thin, pulp fleshy; aril very thin
Morphology Reproductive morphology Seeds
Seeds ovoid, with deeply pitted testa and slightly ruminate endosperm
Distribution
Seven species in tropical Africa.

[FZ]

Apocynaceae, A. J. M. Leeuwenberg & F. K. Kupicha et al. Flora Zambesiaca 7:2. 1985

Morphology General Habit
Shrubs or lianas, glabrous, with white latex present; branches unarmed, lenticellate; trunk dichotomously branched.
Morphology Leaves
Leaves decussate, those of a pair equal or unequal, subsessile or petiolate; petiole with colleters at the base.
Morphology Reproductive morphology Inflorescences
Inflorescences 1–2 in the forks of branches, pendulous, pedunculate, congested, cymose; bracts with colleters.
Morphology Reproductive morphology Flowers
Flowers actinomorphic, often fragrant.
Morphology Reproductive morphology Flowers Calyx
Sepals connate at the extreme base only, imbricate, much shorter than the corolla, inside with 1–4 rows of minute glands near the base.
Morphology Reproductive morphology Flowers Corolla
Corolla tube carnose, glabrous except for pilose ridges leading downward from the base of the filaments inside; tube cylindrical in the lower part, wider in the upper and there cylindrical or infundibuliform; lobes membranaceous, obtriangular, oblique, with two apices, one acute and one rounded.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens included, connivent in a cone. Filaments shorter than the anthers; anthers glabrous, auriculate at the base, 2-celled.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Pistil glabrous; carpels connate at the very base only; disk present; style slender, clavuncula 5-winged; stigma small.
Morphology Reproductive morphology Fruits
Fruit berry-like, many-seeded, the two mericarps free, or (only in C. orientalis) semi-syncarpous; wall thin.
Morphology Reproductive morphology Seeds
Seeds ovoid, testa reticulate and deeply pitted; endosperm copious, surround­ing the straight embryo.

Native to:

Benin, Cabinda, Cameroon, Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Sierra Leone, Togo, Zaïre

Callichilia Stapf appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Letouzey, R. [13980], Cameroon K000028173

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 4(1): 130 (1902)

Accepted by

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

Literature

Flora of West Tropical Africa

  • in F.T.A. 4, 1: 130 (1902).

Flora Zambesiaca

  • Beentje in Meded. Landb. Wag. 78-7: 2 (1978).
  • Pichon in Mém. Mus. Nation. Hist. Nat. Paris N., Sér. 27: 224 (1948).
  • in F.T.A. 4, 1: 130 (1902).

Flora of Tropical East Africa

  • Beentje in Meded. Landbouwhogeschool 78 (7): 1–32 (1978)
  • in F.T.A. 4(1): 130 (1902)

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

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