Leafs - Boskoop
Palm tree - Cocos mats - Genemuiden
Floriad Amsterdam 1982
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
