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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Harkness, Bernard
    Type: Article
    In: Phytologia
    Volume: 9
    Date: 1964
    Page Range: 427--458
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke
  2. By: Harkness, Bernard
    Type: Article
    In: Phytologia
    Volume: 10
    Date: 1964
    Page Range: 241--270
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke