Augustin Augier

A member of the French Oratorian order, he was trained in Paris and ordained a priest on 22 May 1789, on the eve of the Revolution.

For the first part of his career, Augier taught at various Oratorian institutions in France, including at the renown Collège de Tournon, in the Rhône valley.

For the latter part, he set up and ran his own boarding schools in Saint-Donat-sur-l'Herbasse and Peyrins.

His most famous publication is undoubtedly the Essai d'une nouvelle classification des végétaux, published in Lyons in 1801.

[2] Although Augier's tree diagram has been known to the scholarly community since 1983,[4] his identity was only revealed in 2017.