Swiss clergyman and botanist (1798-1885).
Jean Étienne Duby (15 February 1798 in Geneva – 24 November 1885) was a Swiss clergyman and botanist. He studied theology in Geneva, obtaining his consecration in 1820, and having an avid interest in natural history, he earned his degree in natural sciences in 1824. As a young man he was influenced by Augustin Pyramus de Candolle (1778–1841), and made contributions towards Candolle's publication of Botanicon gallicum; seu Synopsis plantarum in Flora gallica descriptarum (1828–1830). From 1831 to 1863 he served as a pastor in Les Eaux-Vives, Geneva, while in the meantime playing an active role