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  1. By: Botanical Research Institute (South Africa) - Botanical Survey of South Africa. - National Herbarium (South Africa) - South Africa. Dept. of Agricultural Technical Services. Division of Botany - South Africa. Dept. of Agriculture. - South Africa. Dept. of Agriculture. - South Africa. Dept. of Agriculture. Division of Botany - South Africa. Dept. of Agriculture. Division of Botany and Plant Pathology
    Publication info: Pretoria, Botanical Research Institute, Dept. of Agricultural Technical Services, 1921-
    Holding Institution: Smithsonian Libraries and Archives