Metzgeria
 Metzgeria is a genus of thalloid liverworts in the family Metzgeriaceae. The genus was named in honor of Johann Metzger (1771–1844) German copper engraver and art restorer from Staufen Breisgau(Baden-Wurttemberg) a friend of Raddi and pupil of the great Florentineengraver Raphael Sanzio Morghen (1753–1833). Approximately 120 to 200 species of Metzgeria have been described. Species may be either monoicous or dioicous.