Johann Jakob Dillenius English botanist of German origin. Date of Birth: 12.12.1684 Country: Great Britain

1. Early Life and Education
2. Relocation to Britain
3. Hortus Elthamensis and Collaboration with Linnaeus
4. Professorship at Oxford
5. Death and Legacy

Early Life and Education

Johann Jakob Dillenius was born on December 12, 1684, in Darmstadt, Germany. He received his education at the University of Giessen in Hesse, Germany. During this time, he penned several botanical articles for the Ephemerides naturae curiosorum. In 1719, he published his Catalogus plantarum sponte circa Gissam nascentium, which included numerous descriptions of new species.

Relocation to Britain

In 1721, at the invitation of British botanist William Sherard, Dillenius left Germany for Britain. In 1724, he published a new edition of John Ray's Synopsis Methodica Stirpium Britannicarum.

Hortus Elthamensis and Collaboration with Linnaeus

In 1732, Dillenius released Hortus Elthamensis, a catalog of rare plants cultivated at Eltham, London, in the collection of James Sherard, William's horticulture-loving younger brother. Dillenius personally created 324 illustrated plates for this work.

Carl Linnaeus, who spent several months at Oxford in 1736, was deeply impressed by Hortus Elthamensis. He described its illustrations as "opus botanicum quo absolutius mundus non vidit" (a botanical work surpassing all others). Later, Linnaeus named a new genus of tropical trees Dillenia in Dillenius's honor.

Professorship at Oxford

In 1734, Dillenius became the Sherardian Professor of Botany at the University of Oxford. He bequeathed his herbaria, drawings, and books to the university, where they are currently housed in the Dillenian Herbaria.

Death and Legacy

Dillenius passed away on April 2, 1747, in Oxford, England. His contributions to botany continue to be recognized and celebrated to this day.