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  1. By: Stevens, Peter F. (Peter Francis),
    Publication info: 1975-1976
    Holding Institution: Harvard University Botany Libraries
    BHL Collections: BHL Field Notes Project
  1. By: Stevens, Peter F. (Peter Francis),
    Type: Article
    In: Arnoldia
    Volume: 67
    Issue: 4
    Date: 2010
    Page Range: 25--27
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University
  2. By: Stevens, Peter F. (Peter Francis),
    Type: Article
    In: Arnoldia
    Volume: 56
    Issue: 4
    Date: 1996
    Page Range: 25--27
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University