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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Swinehart, A L - Jacobs, M E
    Type: Article
    In: Rhodora
    Volume: 100
    Date: 1998
    Page Range: 82--87
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Jacobs, M E
    Type: Article
    In: The Biological bulletin
    Volume: 120
    Date: 1961-04-01
    Page Range: 157--162
    Publication Info: Woods Hole, Mass Marine Biological Laboratory