Hans-Voldemar Trass (2 May 1928 – 14 February 2017) was an

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, a ...

ecologist Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps wi ...

and

botanist Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek wo ...

. He was a member of the

Estonian Academy of Sciences Founded in 1938, the Estonian Academy of Sciences ( et, Eesti Teaduste Akadeemia) is Estonia's national academy of science in Tallinn. As with other national academies, it is an independent group of well-known scientists whose stated aim is to ...

since 1975 and president of the

Estonian Naturalists' Society Estonian Naturalists' Society ( et, Eesti Looduseuurijate Selts, ELUS) is the oldest Estonia-based society of naturalists. It was founded in 1853, and since establishing has been the major scientific organisation focusing on natural history of E ...

from 1964 to 1973 and 1985 to 1991. In 1992, Trass was awarded the

Acharius Medal __NOTOC__ The Acharius Medal is awarded by the International Association for Lichenology (IAL) for lifetime achievement in lichenology. The organization resolved at its 1990 meeting that it would simultaneously honor professional achievement and c ...

by the

International Association for Lichenology The International Association for Lichenology (IAL) is an organisation that encourages the understanding of lichens and lichenology, and promotes their study and conservation worldwide. It unites lichenologists across the globe, as well as national ...

. Trass was married to Estonian actress Raine Loo. The couple had a son, composer and organist Toomas Trass. Trass died on 14 February 2017, aged 88.

References

External links

Estonian Academy of Sciences
by

Teuvo Ahti Teuvo ("Ted") Tapio Ahti (born 1934) is a Finnish botanist and lichenologist. He has had a long career at the University of Helsinki that started in 1963, and then following his retirement in 1997, at the Botanical Museum of the Finnish Museum ...

1928 births 2017 deaths 20th-century Estonian botanists Estonian ecologists Scientists from Tallinn Members of the Estonian Academy of Sciences Acharius Medal recipients 21st-century Estonian botanists Recipients of the Order of the White Star, 3rd Class {{Estonia-botanist-stub