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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Lang, Frank A
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 20
    Date: 1969
    Page Range: 53--60
    Publication Info: Berkeley, California Botanical Society,
  2. By: Lang, Frank A - Zika, Peter F.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 44
    Date: 1997
    Page Range: 189--192
    Publication Info: Berkeley, California Botanical Society,
  3. By: Lang, Frank A
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 21
    Date: 1971
    Page Range: 235--254
    Publication Info: Berkeley, California Botanical Society,