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GRT Records - Public Domain
Missouri Botanical Garden - Public Domain
Achille Devéria - Public Domain
Remen Mager - CC BY-SA 3.0
unknown - Public Domain
NARA-Author -
Jethromo - CC BY-SA 2.0
Alexander Makarov / Александр Макаров -
Roman Winterleitner - CC BY-SA 4.0
Allan warren - CC BY-SA 3.0
George Henry Harlow - Public Domain
NASA - Public Domain
Mathew Brady - Public Domain
. - Public Domain
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GRT Records - Public Domain
Ryles, John Wesley
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Missouri Botanical Garden - Public Domain
Shaw, Henry, 1800-1889
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Eddy, Norman, 1810-1872
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Achille Devéria - Public Domain
Devéria, Achille, 1800-1857
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Remen Mager - CC BY-SA 3.0
Mager, Wim, -2008
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unknown - Public Domain
Pabst, Paul 1854-1897
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Villagrá, Gaspar Pérez de, d. 1620
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Taylor, A. A. (Alfred Alexander), 1848-1931
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Freimann, A. (Aron), 1871-1948
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unknown - Public Domain
Espina, Concha, 1869-1955
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Perrine, Valerie
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unknown - Public Domain
Thomson, James, 1834-1882
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Rau, Karl Heinrich, 1792-1870
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NARA-Author -
Erim, Nihat
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Bicci, Giovanni di, 1360-1429
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Jethromo - CC BY-SA 2.0
Toop, David
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Doyle, Richard, 1824-1883
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Aikins, James Cox, 1823-1904
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Alexander Makarov / Александр Макаров -
Liepa, Māris, 1936-1989
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Roman Winterleitner - CC BY-SA 4.0
Fasching, Bernd
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Romero, Óscar A. (Óscar Arnulfo), 1917-1980
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Charteris, Francis, 1675-1732
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Allan warren - CC BY-SA 3.0
Redgrave, Michael
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George Henry Harlow - Public Domain
Elliston, R. W. (Robert William), 1774-1831
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Tillman, Charlie D. (Charlie Davis), 1861-1943
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NASA - Public Domain
Ochoa, Ellen, 1958-
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Henon, Jacques-Louis
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Mathew Brady - Public Domain
Vandever, William, 1817-1893
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Sumner, Increase, 1746-1799
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. - Public Domain
Tripepi, Luigi 1836-1906