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  1. By: Gaskin, John F - Elvander, Patrick E
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 44
    Date: 1997
    Page Range: 111--112
    Publication Info: Berkeley, California Botanical Society,
  2. By: Elvander, Patrick E - Denton, Melinda F.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 23
    Date: 1976
    Page Range: 346--354
    Publication Info: Berkeley, California Botanical Society,