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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Williams, Andrew H.
    Type: Article
    In: Rhodora
    Volume: 92
    Date: 1990
    Page Range: 205--206
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Williams, Andrew H.
    Type: Article
    In: Journal of the Lepidopterists' Society
    Volume: 57
    Issue: 2
    Date: 2003
    Page Range: 149--150
    Publication Info: [New Haven, Conn.] Lepidopterists' Society 1959-
  3. By: Williams, Andrew H.
    Type: Article
    In: Rhodora
    Volume: 99
    Date: 1997
    Page Range: 344--351
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],