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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Morrison, John L
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 15
    Date: 1960
    Page Range: 178--180
    Publication Info: Berkeley California Botanical Society
  2. By: Morrison, John L
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 4
    Date: 1938
    Page Range: 204--208
    Publication Info: Berkeley California Botanical Society