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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Hill, N M
    Type: Article
    In: Rhodora
    Volume: 103
    Date: 2001
    Page Range: 332--334
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Hill, N M - Boates, J. Sherman. - Elderkin, M F
    Type: Article
    In: Rhodora
    Volume: 102
    Date: 2000
    Page Range: 518--522
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  3. By: Hill, N M
    Type: Article
    In: Rhodora
    Volume: 91
    Date: 1989
    Page Range: 242--243
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],