Extract from Wikipedia article: Ciboria amentacea, commonly known as the catkin cup, is a species of ascomycete fungus in the family Sclerotiniaceae. It is widespread in Europe and North America, where it grows on catkins of willow and alder. The species was first described by Giovanni Battista Balbis in 1804 as Peziza amentacea. Karl Wilhelm Gottlieb Leopold Fuckel transferred it to Ciboria in 1870.
Catkin cup (Ciboria amentacea) mushroom under alder in Lavriki, north from Saint Petersburg. Russia, March 14, 2017 sh. v Lavriki, 13, Lavriki, Leningradskaya oblast', Russia, 188662
Catkin cup (Ciboria amentacea) mushroom on rotting leaves under alder in Lavriki, north from Saint Petersburg. Russia, March 14, 2017 sh. v Lavriki, 13, Lavriki, Leningradskaya oblast', Russia, 188662
Catkin cup (Ciboria amentacea) mushrooms on rotting alder catkins taken from Lavriki, north from Saint Petersburg. Russia, March 14, 2017 pr. Raevskogo, 22, Sankt-Peterburg, Russia, 194064
Catkin cup (Ciboria amentacea) mushrooms under alder bushes near Morskaya, west from Saint Petersburg. Russia, March 16, 2017 Primorskoye sh., g. Sankt-Peterburg, Russia
Catkin cup (Ciboria amentacea) mushrooms on alder catkins near Morskaya, west from Saint Petersburg. Russia, March 16, 2017 Primorskoye sh., g. Sankt-Peterburg, Russia
Catkin cup (Ciboria amentacea) mushrooms taken from Morskaya, west from Saint Petersburg. Russia, March 16, 2017 pr. Raevskogo, 22, Sankt-Peterburg, Russia, 194064
Catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017 pr. Ispytateley, 2к1А, Sankt-Peterburg, Russia, 197343
Cluster of catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017 pr. Ispytateley, 2к1А, Sankt-Peterburg, Russia, 197343
Catkin cup (Ciboria amentacea) mushrooms on rotten leaves under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017 pr. Ispytateley, 2к1А, Sankt-Peterburg, Russia, 197343
Catkin cup (Ciboria amentacea) mushrooms growing under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017 pr. Ispytateley, 2к1А, Sankt-Peterburg, Russia, 197343
Group of catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017 al. Pavla Sadyrina, Sankt-Peterburg, Russia, 197341
Catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017 al. Pavla Sadyrina, Sankt-Peterburg, Russia, 197341
Catkin cup (Ciboria amentacea) mushrooms on a stump in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, March 31, 2017 Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Catkin cup (Ciboria amentacea) mushrooms on roadside near Kavgolovskoe Lake. North from Saint Petersburg, Russia, May 3, 2017 Novyy per., Kavgolovo, Leningradskaya oblast', Russia, 188667
Catkin cup (Ciboria amentacea) mushrooms taken from roadside near Kavgolovskoe Lake. North from Saint Petersburg, Russia, May 3, 2017
Comments
Search of mushroom species for given keywords "Ciboria amentacea" was done through
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