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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Sarvela, Jaakko - Britton, Donald M. - Pryer, Kathleen M. (Kathleen Mary)
    Type: Article
    In: Rhodora
    Volume: 83
    Date: 1981
    Page Range: 421--431
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],