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unknown - Public Domain
Generalitat de Catalunya -
Jburlinson - CC BY-SA 3.0
Gert-Martin Greuel - CC BY-SA 2.0
Georges Biard - CC BY-SA 3.0
Public Domain
Anna Noëlle - CC BY-SA 3.0
Allan warren - CC BY-SA 3.0
Mai Le - CC BY 2.0
Flickr user jakeliefer - CC BY 2.5
Jaqen - CC BY-SA 4.0
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unknown - Public Domain
Tulou, Jean-Louis, 1786-1865
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Generalitat de Catalunya -
Pons, Ventura
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United States. National Arboretum
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Jburlinson - CC BY-SA 3.0
Liebling, A. J. (Abbott Joseph), 1904-1963
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Gert-Martin Greuel - CC BY-SA 2.0
Milnor, John W. (John Willard), 1931-
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Burke, Richard, 1758-1794
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Poey, Felipe, 1799-1891
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Georges Biard - CC BY-SA 3.0
Elkabetz, Ronit
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Chevalley, C. (Claude), 1909-1984
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Grundy, Joseph R. (Joseph Ridgway), 1863-1961
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Royce, Ralph, 1890-1965
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López, Cándido 1840-1902
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Public Domain
Lindsay, Ruby, 1887-1919
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Anna Noëlle - CC BY-SA 3.0
Stoisa, Luigi, 1958-....
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Volck, Adalbert John, 1828-1912
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McKay, Hugh Victor, 1865-1926
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Pocock, Nicholas, 1740?-1821
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Allan warren - CC BY-SA 3.0
Redgrave, Michael
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Powell, Eleanor, 1912-1982
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Mai Le - CC BY 2.0
August, John
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Coningham, William, 1815-1884
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Gregory, Caspar René, 1846-1917
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Public Domain
Bompas, William Carpenter, 1834-1906
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Flickr user jakeliefer - CC BY 2.5
Duncan, Robert, 1948-
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Medley, John, 1804-1892
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Marshall, Ingram, 1942-....
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Jaqen - CC BY-SA 4.0
Bozzetto, Bruno
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Dieulafoy, Georges, 1839-1911
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Velikovsky, Immanuel, 1895-1979
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Eigenmann, Carl H., 1863-1927