The authors deal with the taxonomy, morphology and distribution of the polypore Phellinus tremulae (Bond.) Bond. et Borisov. They demonstrate the presence of a granular core as a character not previously recognized in this species and describe its macro- and microstructure. In Czechoslovakia as throughout the rest of Europe, the frequency of this polypore decreases from East to the West.
Kotlaba F., Pouzar Z. (1968): Some new data concerning Phellinus tremulae (Bond.) Bond. Et Borisov (tab. 70). – Česká Mykologie 22(4): 279–295.
