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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Davis, Ray J
    Type: Article
    In: Rhodora
    Volume: 44
    Date: 1942
    Page Range: 405--406
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Davis, Ray J
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 11
    Date: 1951
    Page Range: 143--144
    Publication Info: Berkeley, California Botanical Society,