Elias Magnus Fries was a Swedish mycologist and botanist. He is sometimes called the "Linnaeus of Mycology". In his works he described and assigned botanical names to hundreds of fungus and lichen species, many of which remain authoritative today.
Johann Müller was a Swiss botanist who was a specialist in lichens. He published under the name Johannes Müller Argoviensis to distinguish himself from other naturalists with similar names.
Irwin M. Brodo is an emeritus scientist at the Canadian Museum of Nature, in Ottawa, Ontario, Canada. He is an authority on the identification and biology of lichens. Irwin Brodo was honored in 1994 with an Acharius Medal presented to him by the International Association for Lichenology.
Max Britzelmayr was a German mycologist and lichenologist who was a native of Augsburg.
Cladia is a genus of lichen-forming fungi in the family Cladoniaceae. Cladia species have a crustose or squamulose (scaly) primary thallus and a fruticose, secondary thallus, often referred to as pseudopodetium. The type species of the genus, Cladia aggregata, is widely distributed, occurring in South America, South Africa, Australasia and South-East Asia to southern Japan and India. Most of the other species are found in the Southern Hemisphere.
Aino Marjatta Henssen, was a German lichenologist and systematist. Her father, Gottfried Henssen, was a folklorist and her mother was Finnish.
Abramo Bartolommeo Massalongo was an Italian paleobotanist and lichenologist. He was born in Tregnago in the Province of Verona and took a great interest in botany as a young man. Massalongo joined the faculty of medicine at the University of Padua in 1844. Along with Gustav Wilhelm Körber, he founded the "Italian-Silesian" school of lichenology. He also collaborated with Martino Anzi. He was the husband of Maria Colognato and the father of hepaticologist Caro Benigno Massalongo. He also worked in the scientific field of herpetology. Massalongo edited the exsiccata Lichenes Italici Exsiccati (1855-1856). In 1859 his Catalogo dei rettili delle province venete was published in Venice.
Yasuhiko Asahina was a Japanese chemist and lichenologist.
Rev. James Mascall Morrison Crombie was a Scottish lichenologist. The standard author abbreviation Cromb. is used to indicate this person as the author when citing a botanical name.
Rolf Santesson (1916–2013) was a Swedish lichenologist and university lecturer. He was awarded the Acharius Medal in 1992 for his lifetime contributions to lichenology.
Thomas Hawkes Nash III is an American lichenologist. His research is about the biology and ecology of lichens, and the effects of air pollution on plants and lichens. He is known as an authority on the family Parmeliaceae. During his long career at the Arizona State University, he helped develop the lichen herbarium into a world-class collection with over 100,000 specimens representing more than 5000 species. In 2010, the year of his retirement, he was awarded the Acharius Medal for lifetime achievements in lichenology, and the following year had a Festschrift published in his honor.
John Alan (Jack) Elix emeritus professor in chemistry at the Australian National University, is an organic chemist who has contributed in many fields: lichenology, lichen chemotaxonomy, plant physiology and biodiversity and natural product chemistry. He has authored 2282 species names, and 67 genera in the field of mycology. Elix edited the exsiccata series Lichenes Australasici exsiccati.
Xanthoparmelia elixii is a lichen in the family Parmeliaceae, and found in South Australia.
Cladia beaugleholei is a lichen in the family Cladoniaceae, found in Australia. It was first described as Heterodea beaugleholei in 1978 by Rex Filson, from a specimen collected from forest soil in New South Wales. The species epithet honours Alexander Clifford Beauglehole. It was reassigned to the genus, Cladia by Sittiporn Parnmen and H. Thorsten Lumbsch in 2012.
Buellia foecunda is a lichen in the family Caliciaceae.
Antonín (Toni) Vězda was a Czech lichenologist. After completing a university education that was postponed by World War II, Vězda taught botany at the Czech University of Life Sciences. In 1958, he was dismissed from his university position as a result of the restrictions placed on academic freedoms by the communist regime in power. He eventually was hired as a lichen researcher by the Czechoslovak Academy of Sciences, who allowed him to work from his apartment, which served also as an office and herbarium.
Veli Johannes Paavo Bartholomeus Räsänen was a Finnish lichenologist.
Ludwig Emanuel Schaerer was a Swiss pastor and lichenologist. Interested in natural history from a young age, Schaerer trained as a teacher and studied theology in Bern. During his career as a teacher, orphanage director, and pastor, he researched extensively and maintained correspondence with foreign botanists interested in cryptogams. Schaerer was best known for his multi-volume work Lichenum Helveticorum Spicilegium, published in 12 parts from 1823 to 1842. This series catalogued and described the lichens of Switzerland, particularly those in the Alps, where he often went on collecting excursions. In another series, he compiled and distributed dried herbarium specimens acquired from his collections. Several lichen taxa have been named in honour of Schaerer.
Exsiccata is a work with "published, uniform, numbered set[s] of preserved specimens distributed with printed labels". Typically, exsiccatae are numbered collections of dried herbarium specimens or preserved biological samples published in several duplicate sets with a common theme or title, such as Lichenes Helvetici. Exsiccatae are regarded as scientific contributions of the editor(s) with characteristics from the library world and features from the herbarium world. Exsiccatae works represent a special method of scholarly communication. The text in the printed matters/published booklets is basically a list of labels (schedae) with information on each single numbered exsiccatal unit. Extensions of the concept occur.
