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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Rettew, G. Raymond
    Type: Article
    In: Journal of the New York Botanical Garden
    Volume: 43
    Issue: 505
    Date: 1942-01
    Page Range: 8--14
    Publication Info: Lancaster, Pa, Published for the Garden by the New Era Printing Co, 1900-