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  1. By: Ackerman, James D - Chiron, Guy R.,
    Type: Article
    In: Richardiana
    Volume: 1
    Issue: 2
    Date: 2001-04
    Page Range: 82--85
    Publication Info: Saint-Genis-Laval [France], Tropicalia, 2001-
  2. By: Ackerman, James D
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 23
    Date: 1975
    Page Range: 191--198
    Publication Info: Berkeley, California Botanical Society,