Joseph Gaertner was a German botanist, best known for his work on seeds, De Fructibus et Seminibus Plantarum. Wikipedia
Born: March 12, 1732, Calw, Germany
Died: July 14, 1791 (age 59 years), Tübingen, Germany
Grandchild: Emma Gärtner
Children: Karl Friedrich von Gaertner
Author abbrev. (botany): Gaertn