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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Barclay-Estrup, P. - Duralia, T E - Harris, A G
    Type: Article
    In: Rhodora
    Volume: 93
    Date: 1991
    Page Range: 141--147
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],