Copper content was measured in 15 edible mushroom species from South Bohemia. Concentrations ranged from 8 to 179 mg/kg dry weight, with Lepiota procera showing the highest levels. Results varied by location, with implications for human dietary intake of copper.
Drbal K., Kalač P., Šeflová A., Šefl J. (1975): Content of copper in some edible mushrooms. – Česká Mykologie 29(3): 184–186.