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By: De Wet, B C - Russel, G E Gibbs - Germishuizen, G - Schrire, B D - Jordaan, M - Pienaar, B J - Welman, W G - Reid, Christopher S. - Van Wyk, C M - Fish, L. - Immelman, K L - Van Rooy, J - Glen, H.F. - Barker, N PType: ArticleIn: BothaliaVolume: 19Series:Issue: 2Date: 1989-12-19Page Range: 275--294Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-Subjects:
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By: Russel, G E Gibbs - Ellis, Roger PearsonType: ArticleIn: BothaliaVolume: 18Series:Issue: 2Date: 1988-10-23Page Range: 165--171Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-Subjects:
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By: Russel, G E Gibbs - Ellis, Roger PearsonType: ArticleIn: BothaliaVolume: 19Series:Issue: 2Date: 1989-12-19Page Range: 189--207Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-Subjects: