The traditional autumn mycological excursion of the Czechoslovak Mycological Society took place on October 8, 1967, in the Kersko forest, instead of the usual location of Karlštejn. About 200 species were recorded, with a notable shift from calciphilous to acidophilous fungi due to different geological conditions.
Kotlaba F. (1968): Excursio autumnalis mycologorum bohemoslovenicorum in silvam Kersko dictam anno 1967. – Česká Mykologie 22(2): 146–148.
