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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hartman, E L - Rottman, M L
    Type: Article
    In: Phytologia
    Volume: 57
    Date: 1985
    Page Range: 133--151
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke
  2. By: Hartman, E L - Rottman, M L
    Type: Article
    In: Phytologia
    Volume: 60
    Date: 1986
    Page Range: 225--236
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke