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حسب Piper, Charles V. (Charles Vancouver), 1867-1926
منشور في 1906 -
Journal kept by David Douglas during his travels in North America 1823-1827together with a particular description of thirty-three species of American oaks and eighteen species of Pinus with appendices containing a list of the plants introduced by Douglas and an account of his death in 1834Bookحسب Douglas, David, 1799-1834
منشور في 1959 -
حسب Munger, Susan H.
منشور في 2003 -
Spokane area botanical collections made by Louis F Henderson May-July 1892(specimens housed at the University of Washington Herbarium)Manuscript Bookمنشور في 1999
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حسب Schmoe, F. W. (Floyd Wilfred), 1895-2001
منشور في 1925 -
حسب McKelvey, Susan Delano
منشور في 1956 -
حسب Meany, Edmond S. (Edmond Stephen), 1862-1935
منشور في 1916 -
حسب Enari, Leonid
منشور في 1956 -
Stirpium aduersaria noua perfacilis vestigatio;Formulæ aliqvot remediorvm; Stirpivm observationesBookحسب Pena, Pierre, active 1535-1605
منشور في 1571 -
حسب Hitchcock, C. Leo (Charles Leo), 1902-1986
منشور في 1955