Leaf - Heerenveen
Pine cone - Boskoop
Pine cone - Zundert
Cranberry - Terschelling
30 Years Pendulum Forest - Harderwijk
400 Years Hortus Botanicus Leiden 1590-1990
Book - Herbarium - Wageningen
Tree - Oak - Bergeijk
Foriade 1972 - Municipal Driebergen
Royal Institute for the Tropics - Palm tree
