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  1. By: Duthie, J. F. (John Firminger), - Parker, R. N. - Turrill, William Bertram,
    Publication info: Calcutta, Superintendent of Government Printing, 1903-29
    Holding Institution: Multiple institutions
  1. By: Parker, R. N.
    Type: Article
    In: Journal of South African botany
    Volume: 19
    Date: 1953
    Page Range: 161--176
    Publication Info: Kirstenbosch National Botanic Gardens of South Africa