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Lorenzo Berlèse (Italian, 1784-1863)
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Robert Jacob Gordon (Dutch, 1743 – 1795)
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Charles Antoine Lemaire (French, 1800-1871)
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Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
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Louis Antoine Cusin (French, 1824-1901)
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William Jackson Hooker (English, 1785 – 1865)
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Robert John Thornton (English, 1768-1837)
![Castagna marrona. [Castanea sativa ; Spanish chestnut]](https://mdl.artvee.com/ft/50144pl.jpg)
Giorgio Gallesio (Italian, 1772-1839)
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Mary Daisy Arnold (American, 1873 – 1955)
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Alexander von Humboldt (German, 1769 – 1859)
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Mary Daisy Arnold (American, 1873 – 1955)
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Elsie E. Lower (American, 1882-1971)
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Maurice Pillard Verneuil (French, 1869-1942)
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Pierre Joseph Redouté (French, 1759-1840)
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Maurice Pillard Verneuil (French, 1869-1942)
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Louis Antoine Cusin (French, 1824-1901)
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Johann Wilhelm Weinmann (German, 1683-1741)
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Walter Hood Fitch (Scottish, 1817 – 1892)
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Charles Demuth (American, 1883-1935)
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Léon Gabriel Charles Pardé (French, 1865-1943)
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Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)
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Georg Dionysius Ehret (German, 1708-1770)
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Elizabeth Blackwell (Scottish, 1707–1758)
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Robert John Thornton (English, 1768-1837)
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Mary Vaux Walcott (American, 1860-1940)