
Lorenz Oken (German, 1779 – 1851)

S. Fred Prince (American, 1857-1949)

Mary Vaux Walcott (American, 1860-1940)

Mary Vaux Walcott (American, 1860-1940)

Mary Vaux Walcott (American, 1860-1940)

Sakai Hōitsu (Japanese, 1761-1828)

Sarah Featon (New Zealander, 1848 – 1927)

Catharina Wilhelmina Schweickhardt (Dutch, 1776-1830)

Charles Antoine Lemaire (French, 1800-1871)

João Barbosa Rodrigues (Brazilian, 1842 – 1909)

Magdelena Rosina Funck (German, 1672–1695)

Mary Vaux Walcott (American, 1860-1940)

William Jackson Hooker (English, 1785 – 1865)

Georgina Burne Hetley (New Zealander, 1832 – 1898)

William Jackson Hooker (English, 1785 – 1865)

George De Alwis (Sri Lankan, ?-1887)

William Roxburgh (Scottish, 1751 – 1815)

William Jackson Hooker (English, 1785 – 1865)

Abraham Jacobus Wendel (Dutch, 1826-1915)

Pierre Joseph Buchoz (French, 1731-1807)

Deborah Griscom Passmore (American, 1840–1911)

Elsie E. Lower (American, 1882-1971)

Anonymous

Ellen Isham Schutt (American, 1873 – 1955)

Deborah Griscom Passmore (American, 1840–1911)

Louis Antoine Cusin (French, 1824-1901)

Elizabeth Blackwell (Scottish, 1707–1758)

James Marion Shull (American, 1872–1948)

Alexander von Humboldt (German, 1769 – 1859)