Flowers bisexual, terminal or axillary, often on short sideshoots, usually large and showy
Sepals 3 or 4, free or united at base, imbricate
Petals 5-10 or more, exceeding the sepals, whorled
Stamens numerous, free; anthers linear
Ovary superior, 1-locular with 2-10 multiovulate parietal placentas; style simple
Fruit large, globose, with woody pericarp, smooth, indehiscent, many-seeded
Seeds with a leathery testa; embryo with leafy cotyledons
x = 11 (10)
Nomenclature:
Oncoba Forssk.
Forsskål: CXIII, 103 (1775)
Harvey: 66 (1860)
Wild: 275 (1960)
Killick: 56 (1976)
Hul & Breteler: 255 (1997)
Genus Xylotheca Hochst. regarded as synonymous to Oncoba Forssk. by Hul & Breteler (1997)
Distribution & Notes:
Global: Species 4, Arabian Peninsula, tropical Africa
Southern Africa: Species 1: Oncoba spinosa Forssk., Namibia, Botswana, Northern Province, Mpumalanga, Swaziland and KwaZulu-Natal
References:
FORSSKÅL, P. 1775. Flora aegyptiaco-arabica: CXIII, 103. Möller, Copenhagen
HARVEY, W.H. 1860. Bixaceae. Flora capensis 1
HUL, S. & BRETELER, F.J. 1997. Réductions génériques dans les Oncobeae (Flacourtiaceae). Adansonia, sér. 3, 19,2
KILLICK, D.J.B. 1976. Flacourtiaceae. Flora of southern Africa 22
WILD, H. 1960. Flacourtiaceae (including Samydaceae). Flora zambesiaca 1
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