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  1. By: Emig, W. H. (William Harrison),
    Publication info: Lancaster, Pa, The Science press printing company, c1941
    Holding Institution: MBLWHOI Library
  1. By: Emig, W. H. (William Harrison),
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 3
    Date: 1916
    Page Range: 243--307
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-