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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Parker, K F
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 10
    Date: 1950
    Page Range: 159--159
    Publication Info: Berkeley, California Botanical Society,
  2. By: Parker, K F
    Type: Article
    In: Phytologia
    Volume: 20
    Issue: 3
    Date: 1970
    Page Range: 192
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke