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  1. By: Fleming, Gary P - Nelson, John B - Townsend, John F.
    Type: Article
    In: Journal of the Botanical Research Institute of Texas
    Volume: 5
    Issue: 1
    Date: 2011
    Page Range: 9--18
    Publication Info: Fort Worth, Tex Botanical Research Institute of Texas 2007-
  2. By: Townsend, John F. - Karaman-Castro, Vesna
    Type: Article
    In: SIDA, contributions to botany
    Volume: 22
    Date: 2006
    Page Range: 873--886
    Publication Info: [Dallas W. F. Mahler, etc.] 1962-
  3. By: Townsend, John F.
    Type: Article
    In: Phytoneuron
    Volume: 2013-9
    Date: 2013
    Page Range: 1--8
    Publication Info: Fort Worth, TX Guy L. Nesom