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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Stockwell, W Palmer
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 5
    Date: 1939
    Page Range: 72--73
    Publication Info: Berkeley, California Botanical Society,
  2. By: Mason, H. L. (Herbert Louis), - Stockwell, W Palmer
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 8
    Date: 1945
    Page Range: 61--63
    Publication Info: Berkeley, California Botanical Society,