A fourth kind of panaces, discovered also by Chiron, is known by the additional name of “centaurion:”572 it is also called “pharnacion,” from King Pharnaces, it being a matter in dispute whether it was really discovered by Chiron or by that prince. It is grown from seed,573 and the leaves of it are longer than those of the other kinds, and serrated at the edge. The root, which is odoriferous, is dried in the shade, and is used for imparting an aroma to wine. Some writers distinguish two varieties of this plant—the one with a smooth leaf, the other of a more delicate form.