![Arnica [Oldenburgia grandis]](https://mdl.artvee.com/ft/50073pl.jpg)
Clemenz Heinrich Wehdemann (German, 1762 - 1835)

Louis Antoine Cusin (French, 1824-1901)

François Hérincq (French, 1820 – 1891)

Thomas Andrew Knight (English, 1759–1838)

Theo Nieuwenhuis (Dutch, 1866-1951)

Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)

Albertus Steenbergen (Dutch, 1814-1900)

Louis Antoine Cusin (French, 1824-1901)

Hans Walty (Swiss, 1868-1948)

Charles Antoine Lemaire (French, 1800-1871)

Hans Walty (Swiss, 1868-1948)

Etienne Denisse (French, 1785–1861)

Anna Atkins (English, 1799 – 1871)

Johann Wilhelm Weinmann (German, 1683-1741)

Jean Jacques Lequeu (French, 1757-1826)

Illtyd Buller Pole-Evans (South African, 1879-1968)

Gaetano Savi (Italian, 1769 – 1844)

James Bateman (English, 1811 – 1897)

Christian Gottlieb Ludwig (German, 1709 – 1773)

Lorenzo Berlèse (Italian, 1784-1863)

Ellen Isham Schutt (American, 1873 – 1955)
![Hyosciamus niger … [and] Crocus Sativus](https://mdl.artvee.com/ft/67907pl.jpg)
Petr Martynovich Gofman (Russian, 19th Century)

Mary Vaux Walcott (American, 1860-1940)

Sydenham Edwards (English, 1768-1819)

Amanda Almira Newton (American, 1860-1943)