Clusiussymposium 18 March 2020: The Japanese Footprint of Siebold in the Netherlands

Siebold’s Statue in Hortus Botanicus

The sessions will take place in the Academiegebouw, Rapenburg 73, in Leiden, between 10:00 and ca. 17.00, the venue will open at 9.30. The lectures will be presented in English. Registration is free. Please send an e-mail to if you wish to attend.


Prof. Dr. Willem van Gulik           Chair and Opening

Keynote lecture Prof. Dr. Hideaki Ohba  – ‘The Relevance of Siebold’s Herbarium’

Prof. Dr. Pieter Baas – The impact of Siebold and Tokunai’s wood collections

Prof. Dr. Harm Beukers – Medicinal plants in Japan

Shantonu Abe Chatterjee MSc – Forgotten vegetables from Siebold’s time

Dr. Daan Kok – Keiga – Siebold’s painter

Mr. Gerard Thijsse – Rise and demise of Siebold’s nursery in Leiderdorp

Dr. Gerda van Uffelen – Siebold’s living plants in the 21st century

Prof. Dr. Tinde van Andel – Summing-up

In 2020 it will be thirty years ago that the first Clusius symposium was organized: The Authentic Garden. Philipp Franz Balthasar von Siebold (1796 – 1866) has been of particular importance for the Hortus botanicus Leiden, Leiden University, Naturalis Biodiversity Center, Leiden, and Japan Museum Siebold House. The jubilee year for the University, Hortus, Naturalis, and Siebold House is an excellent reason  to dedicate a symposium to Siebold’s work and heritage.