Jean-Louis-Auguste Loiseleur-Deslongchamps (24 March 1774, in Dreux, Eure-et-Loir – 8 May 1849, in Paris) was a French physician and botanist. The standard author abbreviation Loisel. is used to indicate this person as the author when citing a botanical name. He was the author of and contributor of a number of works on medicine and botany. He was elected to the Académie Nationale de Médecine in 1823 and was made a Chevalier of the Legion of Honour in 1834. He is commemorated with the botanical genera Loiseleuria (Desv., 1813) and Longchampia (Willd., 1811). His son was the Indologist, Auguste-Louis-Armand Loiseleur-Deslongchamps. Source: Wikipedia (en)