De lichenologische excursie naar het oostelijk deel van de provincie Noord-Brabant in het najaar van 1993

The eastern part of the province Noord-Brabant, has been investigated on lichens by the first author since 1983. The second author has carried out a survey by order of the local government in 1993. This report mentions interesting lichen records of these studies with additional observations. Some rare nitrophytic species which seem to have increased this decade are discussed.