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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Ahlgren, Gilbert H. (Gilbert Harold) - Dotsenko, Alexander
    Type: Article
    In: Journal of the New York Botanical Garden
    Volume: 51
    Issue: 604
    Date: 1950-04
    Page Range: 77--80
    Publication Info: Lancaster, Pa Published for the Garden by the New Era Printing Co 1900-