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  1. By: Soderstrom, Thomas R. - Ellis, Roger Pearson - Judziewicz, Emmet J - Smithsonian Institution. Press
    Publication info: Washington, D.C, Smithsonian Institution Press, 1987
    Holding Institution: Smithsonian Libraries and Archives
  2. By: Soderstrom, Thomas R. - Ellis, Roger Pearson - Smithsonian Institution. Press
    Publication info: Washington, D.C, Smithsonian Institution Press, 1988
    Holding Institution: Smithsonian Libraries and Archives
  1. By: Ellis, Roger Pearson - Bornman, Chris H
    Type: Article
    In: Journal of South African Botany
    Volume: 37
    Issue: 2
    Date: 1971
    Page Range: 109--125
    Publication Info: Kirstenbosch National Botanic Gardens of South Africa
  2. By: Davidse, Gerrit - Ellis, Roger Pearson
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 74
    Date: 1987
    Page Range: 479--490
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  3. By: Ellis, Roger Pearson - Bornman, Chris H
    Type: Article
    In: Journal of South African Botany
    Volume: 37
    Issue: 4
    Date: 1971
    Page Range: 269--279
    Publication Info: Kirstenbosch National Botanic Gardens of South Africa
  4. By: Bornman, Chris H - Ellis, Roger Pearson
    Type: Article
    In: Journal of South African Botany
    Volume: 37
    Issue: 4
    Date: 1971
    Page Range: 281--289
    Publication Info: Kirstenbosch National Botanic Gardens of South Africa
  5. By: Sanchez, Evangelina - Arriaga, Mirta O - Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 19
    Issue: 1
    Date: 1990-10-18
    Page Range: 45--52
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  6. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 17
    Issue: 1
    Date: 1987-10-23
    Page Range: 75--89
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  7. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 17
    Issue: 2
    Date: 1987-10-23
    Page Range: 195--204
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  8. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 16
    Issue: 2
    Date: 1986-10-28
    Page Range: 235--241
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  9. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 19
    Issue: 2
    Date: 1989-12-19
    Page Range: 217--223
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  10. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 16
    Issue: 2
    Date: 1986-10-28
    Page Range: 243--249
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  11. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 18
    Issue: 1
    Date: 1988-10-23
    Page Range: 101--104
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  12. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 18
    Issue: 2
    Date: 1988-10-23
    Page Range: 195--209
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  13. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 19
    Issue: 1
    Date: 1989-10-18
    Page Range: 41--43
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  14. By: Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 12
    Issue: 1
    Date: 1976-11-10
    Page Range: 65--109
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  15. By: Zuloaga, Fernando O. - Ellis, Roger Pearson - Morrone, Osvaldo
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 79
    Date: 1992
    Page Range: 770--818
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  16. By: Russell, G E Gibbs - Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 17
    Issue: 1
    Date: 1987-10-23
    Page Range: 51--65
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  17. By: Davidse, Gerrit - Ellis, Roger Pearson
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 71
    Date: 1984
    Page Range: 994--1012
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  18. By: Russel, G E Gibbs - Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 18
    Issue: 2
    Date: 1988-10-23
    Page Range: 165--171
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-
  19. By: Russel, G E Gibbs - Ellis, Roger Pearson
    Type: Article
    In: Bothalia
    Volume: 19
    Issue: 2
    Date: 1989-12-19
    Page Range: 189--207
    Publication Info: Pretoria Botanical Research Institute, Dept. of Agricultural Technical Services 1921-