A fieldtrip on bicycles was made in the surroundings of Amersfoort by lichenologists and bryologists together. The exuberant vegetation of Cladonia at die Leusderheide was very special. Very remarkable was Ptilidium ciliare growing higher up on a nearly horizontal part of the trunk of an oaktree. Twigs of Larix covered all over by Hypogymnia physodes are seldom seen in the Netherlands.