Karl von Keissler

Austrian lichenologist (1872-1967).

Karl von Keissler (13 March 1872, in Vienna – 9 January 1965) was an Austrian lichenologist and mycologist. In 1895 he obtained his doctorate from the University of Vienna, afterwards spending several years as an assistant in the botanical garden at Vienna. From 1899 to 1938, he performed various functions in the botanical department at the Naturhistorisches Museum. In 1922 (or 1923) he was appointed director of the museum's botanical department. Starting from 1923 until 1933 he published the exsiccata Kryptogamae exsiccatae editae a Museo Palatino Vindobonensi. The lichenicolous fungi genus K