a French priest and naturalist, was born at Chantenay, Main, January 22,1761. When quite young he entered the priesthood, and during the Revolution adopted its principles, and was appointed curate at Pre-au- Mans. Later he was employed as botanist in Baudin's expedition to the Canaries and the Antilles (in 1796). He died July 11, 1825. Ledru wrote several works, for a list of which see Hoefer, Nouv. Biog. Generale, 30:267.