The production of sterile or partially sterile fruitbodies in Coprinus sterquilinus Fr. (strain V) was studied under laboratory conditions. It was found that 20% of fruitbodies were abnormal and most appeared in the first fruiting period. The sterility is likely caused by a nuclear gene with incomplete penetrance. The study also references past literature on sterile fruitbody formation in other agarics.
Nečásek J. (1967): The production of sterile fruit bodies in Coprinus sterquilinus Fr. – Česká Mykologie 21(1): 17–23.
