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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Wilson, L. R. (Leonard Richard), - Webster, Ruth M.
    Type: Article
    In: Rhodora
    Volume: 44
    Date: 1942
    Page Range: 409--414
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Wilson, L. R. (Leonard Richard), - Webster, Ruth M.
    Type: Article
    In: Rhodora
    Volume: 46
    Date: 1944
    Page Range: 149--155
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],