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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Yapp, R. H. (Richard Henry)
    Type: Article
    In: Annals of botany
    Volume: 16
    Date: 1902-06
    Page Range: 185--231
    Publication Info: London, Academic Press [etc.],
  2. By: Yapp, R. H. (Richard Henry)
    Type: Article
    In: Annals of botany
    Volume: 20
    Date: 1906-07
    Page Range: 311--316
    Publication Info: London, Academic Press [etc.],
  3. By: Yapp, R. H. (Richard Henry)
    Type: Article
    In: Annals of botany
    Volume: 23
    Date: 1909-04
    Page Range: 275--319
    Publication Info: London, Academic Press [etc.],
  4. By: Yapp, R. H. (Richard Henry)
    Type: Article
    In: Annals of botany
    Volume: 26
    Date: 1912-07
    Page Range: 815--870
    Publication Info: London, Academic Press [etc.],