Melanopsichium pennsylvanicum Hirschhorn is recorded for the first time from Czechoslovakia. This smut fungus was found on Polygonum aviculare in Prague. Its known distribution includes North America and several European countries. A brief discussion of related species is included.
Scholz H. (1971): Melanopsichium pennsylvanicum Hirschhorn (New records. 7.). – Česká Mykologie 25(1): 58–59.