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  1. By: Pearson, H H W
    Type: Article
    In: Annals of botany
    Volume: 12
    Date: 1898-12
    Page Range: 475--490
    Publication Info: London, Academic Press [etc.],
  2. By: Pearson, H H W
    Type: Article
    In: Annals of botany
    Volume: 17
    Date: 1903-06
    Page Range: 617--618
    Publication Info: London, Academic Press [etc.],
  3. By: Bews, J. W. (John William), - Pearson, H H W
    Type: Article
    In: Transactions of the Royal Society of South Africa
    Volume: 5
    Date: 1915
    Page Range: 605--636
    Publication Info: Cape Town, Royal Society of South Africa,
  4. By: Pearson, H H W
    Type: Article
    In: Transactions of the South African Philosophical Society
    Volume: 16
    Date: 1905
    Page Range: 341--354
    Publication Info: Cape Town, The Society,
  5. By: Rattray, G - Pearson, H H W
    Type: Article
    In: Transactions of the Royal Society of South Africa
    Volume: 3
    Date: 1913
    Page Range: 259--270
    Publication Info: Cape Town, Royal Society of South Africa,
  6. By: Pearson, H H W - Thomson, Mary R. H.
    Type: Article
    In: Transactions of the Royal Society of South Africa
    Volume: 6
    Date: 1917
    Page Range: 231--269
    Publication Info: Cape Town, Royal Society of South Africa,
  7. By: Pearson, H H W
    Type: Article
    In: Annals of botany
    Volume: 24
    Date: 1910-10
    Page Range: 759--766
    Publication Info: London, Academic Press [etc.],
  8. By: Pearson, H H W
    Type: Article
    In: Annals of botany
    Volume: 26
    Date: 1912-04
    Page Range: 603--620
    Publication Info: London, Academic Press [etc.],
  9. By: Pearson, H H W
    Type: Article
    In: Transactions of the Royal Society of South Africa
    Volume: 6
    Date: 1917
    Page Range: 69--87
    Publication Info: Cape Town, Royal Society of South Africa,
  10. By: Pearson, H H W
    Type: Article
    In: Transactions of the South African Philosophical Society
    Volume: 15
    Date: 1904
    Page Range: 175--182
    Publication Info: Cape Town, The Society,
  11. By: Dümmer, R A - Pearson, H H W
    Type: Article
    In: Transactions of the Royal Society of South Africa
    Volume: 3
    Date: 1913
    Page Range: 275--335
    Publication Info: Cape Town, Royal Society of South Africa,