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  1. By: Soderstrom, Thomas R. - Ellis, Roger Pearson - Judziewicz, Emmet J - Smithsonian Institution. Press
    Publication info: Washington, D.C, Smithsonian Institution Press, 1987
    Holding Institution: Smithsonian Libraries and Archives
  2. By: Soderstrom, Thomas R. - Ellis, Roger Pearson - Smithsonian Institution. Press
    Publication info: Washington, D.C, Smithsonian Institution Press, 1988
    Holding Institution: Smithsonian Libraries and Archives
  1. By: Davidse, Gerrit - Ellis, Roger Pearson
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 74
    Date: 1987
    Page Range: 479--490
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  2. By: Zuloaga, Fernando O. - Ellis, Roger Pearson - Morrone, Osvaldo
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 79
    Date: 1992
    Page Range: 770--818
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-
  3. By: Davidse, Gerrit - Ellis, Roger Pearson
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 71
    Date: 1984
    Page Range: 994--1012
    Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-