Type specimens and other material of Comptonia difformis (Sternberg) Berry (Myricaceae) from the Most Basin, North Bohemia, have been re-investigated in order to obtain more complete information on the leaf morphology, epidermal structure and co-occurring fruits. The history, paleoecology and comparisons with similar fossils from Eurasia and extant Comptonia have been discussed including additional notes on associated pollen and wood anatomy.