Gustaf Einar Du Rietz
Swedish botanist (1895-1967) · Sweden · On the map · Scientists · Died at 71
Gustaf Einar Du Rietz was a Swedish botanist and lichenologist. His research interests included plant ecology, lichen taxonomy, and biogeography.
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A typical day, 30 days to 26 September 2026
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About this person
He was a leading figure in the Uppsala school of phytosociology-the study of groups of species of plants that are usually found together-and is recognised for his role in advancing this field of science and for mentoring future lichenologists. He led the Swedish Australasian Botanical Expedition of 1926-27, a seven-month research tour of various locations. He was married to Greta Sernander, who was also a lichenologist. During the expedition, Du Rietz and his wife researched the vegetation in New Zealand, Australia, and Java, focusing on mountain lichens and their potential as bioindicators for environmental conditions. They collected around 3000 specimens, contributing significantly to the study of bipolar lichens and forest ecology, despite challenges in processing all the samples upon return to Sweden. Several species have been named in his honour. In 1949, Du Rietz was elected to the Royal Swedish Academy of Sciences and contributed significantly to nature conservation efforts in Sweden.
