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  1. By: Gibson, Lorna J.
    Type: Article
    In: Arnoldia
    Volume: 70
    Issue: 2
    Date: 2012
    Page Range: 11--19
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University
  2. By: Gibson, Lorna J.
    Type: Article
    In: Arnoldia
    Volume: 74
    Issue: 1
    Date: 2016
    Page Range: 23--27
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University