Jacques (1513–1588), a French physician and botanist, was born at Caen, in Normandy. He was distinguished for his industry and erudition, both in science and in literature. He edited Pliny, Athenaeus, Paulus Egineta, Caius Aurelius, and the two Senecas. To the Dioscorides of Ruelius he added thirty plates of rare plants; and in his Historia generalis Plantarum in libros xxiii. per certas classes artificios digesta, Lugd. 1587, 2 vols. fol., he aimed at including all the botanical discoveries previous to his own time, as well as those which he himself had made in the vicinity of Lyons and the Alps. Dalechamps was also the author of a work on surgery, and another on the Plague, in three books. During the last six years of his life he practised as a physician at Lyons.