Cenomyce as described in Lichenographia universalis. To this day several of Acharius's original classification schema are still used in lichen taxonomy. The International Association for Lichenology has named its medal for lifetime achievement in lichenology the Acharius Medal after him. and also in 1992 installed a commemorative plaque on the house in Vadstena where he lived for many years. Publications and honors He was a member of the Royal Physiographic Society in Lund (1795), the Royal Swedish Academy of Sciences (1796), the Linnean Society of London (1801), appointed Knight of the Order of Vasa (1809), and the Royal Society of Sciences in Uppsala (1810). The plant genus Acharia (in 1794,), several plants species (e.g., Rosa acharii, and (type of lichen), Conferva acharii) and one insect, Tortrix achariana have all been named after Acharius. Also the Acharius Medal is awarded for lifetime achievement in lichenology. The collections of Acharius are distributed over several museums: the Finnish Museum of Natural History in Helsinki, which holds the Botanical Museum in Uppsala, the Swedish Museum of Natural History and the Botanical Museum in Lund. His papers are in the Library of Uppsala University. There are also specimens that he collected in the Natural History Museum, London. The following is a list of Erik Acharius's publications: Lichenographiae svecicae Prodromus (Beginning of a Lichenography of Sweden) 1798 Methodus qua omnes detectos Lichenes (A Method by which Everyone Can Identify Lichens) 1803 Lichenographia universalis (A Universal Lichenography) 1810 Synopsis methodica Lichenum (Taxonomical Arrangement of Lichens) 1814 See also List of mycologists References Monika Myrdal: "Erik Acharius, the father of lichenology", at the website of the Swedish Museum of Natural History. With links to sample images of his publications. Rutger Sernander: "Acharius, Erik", Svenskt biografiskt lexikon, vol. 1, pp. 28–80. Further reading 1757 births 1819 deaths People from Gävle Swedish mycologists 18th-century Swedish physicians Swedish lichenologists Fellows of the Linnean Society of London Members of the Royal Swedish Academy of Sciences Members of the Royal Physiographic Society in Lund Age of Liberty people Uppsala University alumni