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Leif Randulff Ryvarden (born 9 August 1935) is a Norwegian mycologist. ==Academic career== He was born in Bergen as a son of Einar Norberg Johansen (1900–1959) and Hjørdis Randulff (1912–1975). he changed his last name from Johansen to Ryvarden in 1956. In 1961 he married teacher Ingbjørg Alise Eia Barstad. He finished his secondary education at Berg in 1954 and took basic military education from 1957 to 1958. He studied chemistry at the Norwegian Institute of Technology.〔 In 1961 he ran for election as chairman of Student Society in Trondheim, albeit unsuccessfully. He eventually graduated with the siv.ing. degree in 1963,〔 and later majored in botany at the University of Oslo, taking a cand.real. degree. He also studied in London from 1971 to 1972, a stay that sparked his interest in mycology. Ryvarden conducted field work in about eighty countries, mostly in a tropical environment. He was employed as research assistant at the Norwegian Institute of Technology from 1965 to 1966, research fellow at the University of Oslo from 1966 to 1972 and then associate professor. He was promoted to professor at the University of Oslo in 1992, and served until 2002.〔 He is currently a professor emeritus. By the time of his seventieth birthday, Ryvarden had published about 180 adacemic works.〔 He has chaired the Norwegian Botanical Association. He has been an editorial board member of the journals ''Neotropica'', ''Plant Systematics and Evolution'' and ''Mycological Progress'', and a council member of the Research Council of Norway department for sciences.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Leif Ryvarden」の詳細全文を読む スポンサード リンク
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