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  1. By: Lewis, Francis John,
    Type: Article
    In: Annals of botany
    Volume: 12
    Date: 1898-09
    Page Range: 418--421
    Publication Info: London, Academic Press [etc.],
  2. By: Lewis, Francis John,
    Type: Article
    In: Annals of botany
    Volume: 14
    Date: 1900-03
    Page Range: 157--159
    Publication Info: London, Academic Press [etc.],
  3. By: Lewis, Francis John, - Tuttle, Gwynethe M.
    Type: Article
    In: Annals of botany
    Volume: 34
    Date: 1920-07
    Page Range: 405--416
    Publication Info: London, Academic Press [etc.],