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  1. By: Graham, Margaret
    Type: Article
    In: Memoirs of the Torrey Botanical Club
    Volume: 17
    Issue: 2
    Date: 1918
    Page Range: 323--325
    Publication Info: Durham, N.C, Published for the Club by the Seeman Printery, 1889-
  2. By: Graham, Margaret
    Type: Article
    In: Annals of botany
    Volume: 32
    Date: 1918-07
    Page Range: 415--420
    Publication Info: London, Academic Press [etc.],
  3. By: Graham, Margaret
    Type: Article
    In: Annals of botany
    Volume: 27
    Date: 1913-10
    Page Range: 661--679
    Publication Info: London, Academic Press [etc.],