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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Barker, B. T. P.
    Type: Article
    In: Annals of botany
    Volume: 14
    Date: 1900-06
    Page Range: 215--244
    Publication Info: London, Academic Press [etc.],
  2. By: Barker, B. T. P.
    Type: Article
    In: Annals of botany
    Volume: 17
    Date: 1903-01
    Page Range: 167--236
    Publication Info: London, Academic Press [etc.],
  3. By: Barker, B. T. P.
    Type: Article
    In: Annals of botany
    Volume: 15
    Date: 1901-12
    Page Range: 759--764
    Publication Info: London, Academic Press [etc.],