Jean Baptiste Saint-Lager (1825–1912)
French physician, botanist, and botanical historian. Qualified in medicine, Lyon School of Medicine, 1847; MD, Paris, 1850. After practising for twelve years in Lyon, he devoted himself to research on medical and botanical topics. Founding member of the Société botanique de Lyon, 1872; librarian, 1881–1911. Published on vascular plants of the Rhône valley, and the history of botanical collecting and nomenclature.