
John Stevens Henslow (English, 1796 – 1861)

Gunnar Gunnarsson Wennerberg (Swedish, 1863-1914)

Mary Vaux Walcott (American, 1860-1940)

Mary Daisy Arnold (American, 1873 – 1955)

Luigi Balugani (Italian, 1737-1770)

George De Alwis (Sri Lankan, ?-1887)

Pierre Joseph Buchoz (French, 1731-1807)

Charlotte Mary Yonge (English, 1823 – 1901)

Elizabeth Blackwell (Scottish, 1707–1758)

João Barbosa Rodrigues (Brazilian, 1842 – 1909)

Karl Wiener (Austrian, 1901-1949)

Charles Antoine Lemaire (French, 1800-1871)

Lorenzo Berlèse (Italian, 1784-1863)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)

Leopold Zinnögger (Austrian, 1811-1872)

Elizabeth Blackwell (Scottish, 1707–1758)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)

Christian Gottlieb Ludwig (German, 1709 – 1773)

Pieter Holsteyn II (Dutch, 1614-1673)

Hans Walty (Swiss, 1868-1948)

Sydenham Edwards (English, 1768-1819)
![Fiore di Giliegio Visciolo. [Pear tree flowers]](https://mdl.artvee.com/ft/50176pl.jpg)
Giorgio Gallesio (Italian, 1772-1839)

Aylmer Bourke Lambert (English, 1761 – 1842)

Charles Antoine Lemaire (French, 1800-1871)

Pierre Joseph Redouté (French, 1759-1840)

Edward Step (English, 1855-1931)

Charles Empson (English, 1794-1861)