Pluteus atromarginatus is a species of fungus that belongs to the family Pluteaceae. It has a cap diameter of 3-8 cm, brown to dark brown in color with a velvety texture, and black margins. The gills are free, crowded, and pinkish-brown. In St. Petersburg, Leningrad Oblast, and north-western Russia, it is typically found growing on decaying wood, stumps, or sawdust, often in urban areas, from summer to autumn.
Black-edged Pluteus mushroom (Pluteus atromarginatus) in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 31, 2016 Unnamed Road, Vaskelovo, Leningradskaya oblast', Russia, 188695
Blackedged shield mushrooms (Pluteus atromarginatus) on a pine tree in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017 Severnyy Prospekt, 26к1, St Petersburg, Russia, 194295
Blackedged shield mushrooms (Pluteus atromarginatus) cut from a pine tree in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017 Severnyy Prospekt, 26к1, St Petersburg, Russia, 194295
Gills of blackedged shield mushroom (Pluteus atromarginatus) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, September 22, 2017 Fedotovskaya Dorozhka, 27, Tarkhovka, Sankt-Peterburg, Russia, 197701
Black-edged Pluteus mushroom (Pluteus atromarginatus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018 Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621
Gills of black-edged Pluteus mushroom (Pluteus atromarginatus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018 Okruzhnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196625
Dissected black-edged Pluteus mushroom (Pluteus atromarginatus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018 Okruzhnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196625
Blackedged shield mushrooms (Pluteus atromarginatus) near Lembolovo, north from Saint Petersburg. Russia, August 24, 2018 Unnamed Road, Leningradskaya oblast', Russia, 188695
AI-generated summary of observations
Observations of Pluteus atromarginatus in Leningrad Oblast and north-western Russia reveal the fungus's presence in various locations. In Lembolovo, 35 miles north of Saint Petersburg, it was found on August 31, 2016. The mushroom was also spotted in Sosnovka Park, Saint Petersburg, on August 21, 2017, growing on a pine tree. Similar sightings were recorded in Tarkhovka Park near Sestroretsk on September 22, 2017, and in Pavlovsk Park, a suburb of Saint Petersburg, on August 20, 2018. The fungus was found to have distinct black-edged gills, as observed in Pavlovsk Park and Tarkhovka Park. Dissection of the mushroom in Pavlovsk Park provided further insight into its structure. Additional sightings were reported near Lembolovo on August 24, 2018, confirming the species' presence in the region. The observations span multiple years and locations, indicating the fungus's widespread distribution.
Comments
Search of mushroom species for given keywords "Pluteus atromarginatus" was done through
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