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  1. By: Holden, Ruth
    Type: Article
    In: Botanical gazette.
    Volume: 58
    Issue: 2
    Date: 1914
    Page Range: 168--177
    Publication info: Chicago [etc.]University of Chicago Press [etc.]
  2. By: Holden, Ruth
    Type: Article
    In: Botanical gazette.
    Volume: 60
    Issue: 3
    Date: 1915
    Page Range: 215--227
    Publication info: Chicago [etc.]University of Chicago Press [etc.]