Synonyms: Agaricus stercorarius, Coprinus stercorarius, Coprinus stercoreus, Coprinus velox, Fungus stercorarius.
Russian name: Navoznik gryaznyy.
Coprinopsis stercorea is a species of fungus that grows on dung, particularly horse and cow manure. In St. Petersburg and Leningrad Oblast, it has been found in urban and rural areas, often in parks, gardens, and meadows with abundant horse manure. In north-western Russia, it typically fruits from June to October, with a peak in July and August. The fungus is characterized by its small to medium size, bell-shaped cap, and autodigesting gills that turn black and inky with age. It is a relatively common species in the region, often found in association with other coprinoid fungi.
Observations of the fungus Coprinopsis stercorea in Leningrad Oblast and north-western Russia revealed its growth on dung. On September 1, 2017, small inkcap mushrooms were found growing on dung near Rappolovo and Toksovo, north from Saint Petersburg. The mushrooms were identified as Coprinopsis stercorea, although the identification was tentative, denoted by a question mark. Similar tiny inkcap mushrooms, also believed to be Coprinopsis stercorea, were observed in the same area on the same day, confirming the species' presence in the region. These observations suggest that Coprinopsis stercorea is capable of thriving in the environmental conditions found in Leningrad Oblast and north-western Russia, particularly in areas with suitable dung substrates. The species appears to be able to colonize and grow on dung in this region.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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