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  1. By: Panagos, M D - Westfall, R. H. - Scheepers, J C
    Type: Article
    In: Bothalia
    Volume: 16
    Issue: 1
    Date: 1986-07-22
    Page Range: 89--92
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  2. By: Trytsman, Marike - Westfall, R. H. - Breytenbach, Philippus - Calitz, Frikkie - Van Wyk, Braam
    Type: Article
    In: PhytoKeys
    Volume: 70
    Date: 2016
    Page Range: 53-96
    Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-
  3. By: Westfall, R. H. - Malan, O G
    Type: Article
    In: Bothalia
    Volume: 16
    Issue: 2
    Date: 1986-10-28
    Page Range: 263--268
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  4. By: Westfall, R. H.
    Type: Article
    In: Bothalia
    Volume: 16
    Issue: 2
    Date: 1986-10-28
    Page Range: 270--271
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  5. By: Westfall, R. H. - De Wet, C
    Type: Article
    In: Bothalia
    Volume: 18
    Issue: 1
    Date: 1988-10-23
    Page Range: 122--123
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  6. By: Westfall, R. H. - Panagos, M D
    Type: Article
    In: Bothalia
    Volume: 18
    Issue: 1
    Date: 1988-10-23
    Page Range: 289--291
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  7. By: Westfall, R. H. - Van Rooyen, N - Theron, G K
    Type: Article
    In: Bothalia
    Volume: 16
    Issue: 1
    Date: 1986-07-22
    Page Range: 77--82
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  8. By: Deall, G B - Theron, G K - Westfall, R. H.
    Type: Article
    In: Bothalia
    Volume: 19
    Issue: 1
    Date: 1989-10-18
    Page Range: 69--89
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-