The author reports a third Bohemian locality for Agaricus deylii Pilát, based on a single fruitbody found near Prague in 1964. This rare species differs from Agaricus benešii by red coloration on cutting, shorter thicker stipe, and larger spores.
Pilát A. (1965): Agarici deylii Pilát nova localitas in Bohemia. – Česká Mykologie 19(1): 52.