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  1. By: Gray, Asa, - Kellogg, A. (Albert), - Kippist, Richard, - Knieskern, Peter D., - Kunze, Gustav,
    Publication info: [1842-1891]
    Holding Institution: Harvard University Botany Libraries
  2. By: Knieskern, Peter D.,
    Publication info: [Albany, s.n.], 1842
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
  3. By: Knieskern, Peter D.,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  4. By: Knieskern, Peter D.,
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: John Torrey Papers
  1. By: Knieskern, Peter D.,
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1846-07-08
    Publication Info: [1842-1891]
  2. By: Knieskern, Peter D.,
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1845-06-10
    Publication Info: [1842-1891]
  3. By: Knieskern, Peter D.,
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1844-03-29
    Publication Info: [1842-1891]
  4. By: Knieskern, Peter D.,
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1847-03-09
    Publication Info: [1842-1891]
  5. By: Knieskern, Peter D.,
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1846-05-28
    Publication Info: [1842-1891]
  6. By: Knieskern, Peter D.,
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1856-10-01
    Publication Info: [1842-1891]