Three new localities of Pleurotus calyptratus (Lindbl. in Fr.) Sacc. are reported from Czechoslovakia, now known from four sites in total. Previously known only from Sweden and Austria, it is a very rare agaric. Ecology and taxonomy are briefly discussed.
Kotlaba F., Pouzar Z. (1965): Further finds of Pleurotus calyptratus (Lindbl. in Fr.) Sacc. in Czechoslovakia. – Česká Mykologie 19(1): 53–56.