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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Rosen, H R
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 8
    Date: 1921
    Page Range: 357--359
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  2. By: Rosen, H R
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 9
    Date: 1922
    Page Range: 333--402
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-