Apples Copyrighted image Credit: Used with permission

 

Look at the web-site of the Research School Biodiversity, Amsterdam for a profile of the Leiden Botanic Garden.

Some of Carolus Clusius's books are catalogued in the Patten Collection of Herbals and Early Gardening Books.

Further reading
The Clusius Botanical Watercolours
Claudia Swan, Abrams 1998