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By: Williams, IonType: ArticleIn: Journal of South African botanyVolume: 39Series:Issue: 2Date: 1973Page Range: 179--183Publication Info: Kirstenbosch National Botanic Gardens of South AfricaSubjects:
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By: Williams, IonType: ArticleIn: Journal of South African botanyVolume: 39Series:Issue: 3Date: 1973Page Range: 229--232Publication Info: Kirstenbosch National Botanic Gardens of South AfricaSubjects:
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By: Williams, IonType: ArticleIn: Journal of South African botanyVolume: 40Series:Issue: 2Date: 1974Page Range: 85--89Publication Info: Kirstenbosch National Botanic Gardens of South AfricaSubjects:
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By: Williams, IonType: ArticleIn: Journal of South African botanyVolume: 40Series:Issue: 4Date: 1974Page Range: 275--290Publication Info: Kirstenbosch National Botanic Gardens of South AfricaSubjects:
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By: Goldblatt, Peter, - Williams, IonType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 74Series:Issue:Date: 1987Page Range: 443--444Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: