Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a meadow in Pavlovsk Park, south from Saint Petersburg, Russia, June 23, 2010Synonyms: Agaricus mutabilis, Dryophila mutabilis, Galerina mutabilis, Lepiota caudicina, Pholiota mutabilis.
Common name: sheathed woodtuft.
Russian names: Opionok letniy, Kiuneromitses izmenchivyy.
Extract from Wikipedia article: Kuehneromyces mutabilis (synonym: Pholiota mutabilis), commonly known as the sheathed woodtuft, is an edible mushroom that grows in clumps on tree stumps or other dead wood. A few other species have been described in the genus Kuehneromyces, but K. mutabilis is by far the most common and best known.
Kuehneromyces mutabilis is a species of fungus that grows on the ground in coniferous and mixed forests. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically fruits from July to November, often in association with spruce and pine trees. The cap is 2-6 cm in diameter, bell-shaped to convex, and reddish-brown to yellowish-brown in color. The gills are crowded, narrow, and initially pale yellow, later becoming rust-colored. The stem is slender, cylindrical, and fibrillose, with a ring that may disappear with age. This fungus is considered edible and is commonly found in the region's forests, particularly in areas with rich soil and ample moisture.
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a meadow in Pavlovsk Park, south from Saint Petersburg, Russia, June 23, 2010
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a roadside in Sosnovka Park in Saint Petersburg. Russia, May 31, 2011
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Kavgolovo Lake south from Oselki, north from Saint Petersburg. Russia, August 6, 2012
P33, Leningrad Oblast, Russia
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a log in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 31, 2013Р34, Leningrad Oblast, Russia
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 31, 2013Unnamed Road, Leningradskaya oblast', Russia, 188732
Masses of Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on birch log in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 31, 2013Р34, Leningrad Oblast, Russia
Brown caps of Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 31, 2013Р34, Leningrad Oblast, Russia
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis)(?) in a forest around Kavgolovskoe Lake, near Saint Petersburg. Russia, September 6, 2013Dachnaya, 17, Toksovo, Leningrad Oblast, Russia
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Okhtinsky Park in Toksovo, 8 miles north from Saint Petersburg. Russia, September 13, 2013Tsentralnaya, 35А, Zelenye Kholmy, Leningrad Oblast, Russia, 188660
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on northern shore of Kavgolovskoe Lake near Oselki, 12 miles north from Saint Petersburg. Russia, September 20, 2013Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a log near Kavgolovo Lake south from Oselki, 10 miles from Saint Petersburg. Russia, July 7, 2016Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Caps of Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a log near Kavgolovo Lake south from Oselki, 10 miles from Saint Petersburg. Russia, July 7, 2016Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Yellow caps of Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Kavgolovo Lake south from Oselki, 10 miles from Saint Petersburg. Russia, July 7, 2016Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Toksovo, suburb of Saint Petersburg. Russia, July 19, 2016Unnamed Road, Leningradskaya oblast', Russia, 188660
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Sosnovka Park. Saint Petersburg, Russia, July 20, 2016Unnamed Road, Sankt-Peterburg, Russia
Tiny sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a rotten tree stump in Sosnovka Park. Saint Petersburg, Russia, July 20, 2016ul. Zhaka Dyuklo, 67, Sankt-Peterburg, Russia, 194214
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Sosnovka Park. Saint Petersburg, Russia, July 23, 2016Unnamed Road, Sankt-Peterburg, Russia, 194064
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a log near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 24, 2016Dachnaya ul., Leningradskaya oblast', Russia, 188664
Caps of sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a log near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 24, 2016Dachnaya ul., Leningradskaya oblast', Russia, 188664
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 31, 2016Unnamed Road, Vaskelovo, Leningradskaya oblast', Russia, 188695
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Masses of sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Dibuny, west from Saint Petersburg. Russia, September 7, 2016Unnamed Road, Pesochnyy, g. Sankt-Peterburg, Russia
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) grown in a dry spot at a sandy road near Orekhovo, 40 miles north from Saint Petersburg. Russia, September 9, 2016
Gills of sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) south-west from Dibuny - Pesochnyi, near Saint Petersburg. Russia, September 14, 2016Zapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Lisiy Nos, west from Saint Petersburg. Russia, September 16, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Large caps of sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Lisiy Nos, west from Saint Petersburg. Russia, September 16, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) near Orekhovo, north from Saint Petersburg, Russia, October 22, 2016Unnamed Road, Leningradskaya oblast', Russia
Sheathed Woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) in Dibuny, north-west from Saint Petersburg, Russia, October 23, 2016Zapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758
Old dry sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a stump in Dibuny, north-west from Saint Petersburg, Russia, October 23, 2016Unnamed Road, Pesochnyy, g. Sankt-Peterburg, Russia
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Sosnovka Park. Saint Petersburg, Russia, May 31, 2017Unnamed Road, Sankt-Peterburg, Russia, 194064
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, June 21, 2017Krasnogo Molodtsa, Pavlovsk, Sankt-Peterburg, Russia, 196625
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Sosnovka Park. Saint Petersburg, Russia, June 25, 2017Svetlanovskiy pr., 61к1, Sankt-Peterburg, Russia, 194064
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Sosnovka Park. Saint Petersburg, Russia, June 25, 2017Svetlanovskiy pr., 55-57, Sankt-Peterburg, Russia, 194064
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Dibuny, west from Saint Petersburg. Russia, June 27, 2017Unnamed Road, Sankt-Peterburg, Russia, 197758
Cluster of sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Dibuny, west from Saint Petersburg. Russia, June 27, 2017Unnamed Road, Sankt-Peterburg, Russia, 197758
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Dibuny, west from Saint Petersburg. Russia, June 27, 2017Unnamed Road, Sankt-Peterburg, Russia, 197758
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Lisiy Nos, west from Saint Petersburg. Russia, July 2, 2017Polyanskaya dor., Sankt-Peterburg, Russia, 197755
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Lisiy Nos, west from Saint Petersburg. Russia, July 2, 2017Polyanskaya dor., Sankt-Peterburg, Russia, 197755
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Shchuchye Lake in Komarovo, west from Saint Petersburg. Russia, July 8, 2017Ozyornaya ul., 45, Russia, 197733
Mature sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Sosnovka Park. Saint Petersburg, Russia, July 19, 2017Unnamed Road, Sankt-Peterburg, Russia
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Kuzmolovo, north from Saint Petersburg. Russia, July 26, 2017Unnamed Road, Leningradskaya oblast', Russia, 188663
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a mossy stump near Lisiy Nos, west from Saint Petersburg. Russia, July 27, 2017Primorskoye sh., 16, Lisiy Nos, Sankt-Peterburg, Russia, 197755
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Lisiy Nos, west from Saint Petersburg. Russia, July 27, 2017Primorskoye sh., 16, Lisiy Nos, Sankt-Peterburg, Russia, 197755
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017Unnamed Road, Pesochnyy, Sankt-Peterburg, Russia
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in moss near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017Unnamed Road, Pesochnyy, Sankt-Peterburg, Russia
Very young tiny sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 12, 2017Unnamed Road, Kannelyarvi, Leningradskaya oblast', Russia, 188850
Very young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) under bark on a spruce log in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 12, 2017Unnamed Road, Kannelyarvi, Leningradskaya oblast', Russia, 188850
Tiny emerging sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 12, 2017Unnamed Road, Kannelyarvi, Leningradskaya oblast', Russia, 188850
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on old roadside rubbish near Toksovo, north from Saint Petersburg. Russia, August 16, 2017Unnamed Road, Leningradskaya oblast', Russia, 188664
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a log near Lisiy Nos. West from Saint Petersburg, Russia, August 23, 2017Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Lisiy Nos. West from Saint Petersburg, Russia, August 23, 2017Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Masses of sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Cluster of sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Caps of sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Small sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017Lipetskaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196625
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017Lipetskaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196625
Immature northern honey mushrooms (Armillaria borealis) together with sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017Krugovaya Ulitsa, 25, Tyarlevo, Sankt-Peterburg, Russia, 196625
Immature northern honey mushrooms (Armillaria borealis) together with sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in roadside bushes in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017Krugovaya Ulitsa, 25, Tyarlevo, Sankt-Peterburg, Russia, 196625
Young northern honey mushrooms (Armillaria borealis) together with sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017Unnamed Road, Sankt-Peterburg, Russia, 197758
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Kuzmolovo, north from Saint Petersburg. Russia, August 23, 2018Unnamed Road, Leningradskaya oblast', Russia, 188663
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) at the base of a tree in Kuzmolovo, north from Saint Petersburg. Russia, August 23, 2018Unnamed Road, Leningradskaya oblast', Russia, 188663
Immature sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a fallen birch near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018Saint Petersburg, Russia, 197755
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a fallen birch branch near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018Полянская дорога, Поляны, Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Lisiy Nos, west from Saint Petersburg. Russia, September 1, 2018Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Young sheathed woodtuft mushrooms (Kuehneromyces mutabilis, Pholiota mutabilis) on a roadside stump near Lenin Trail in area of Razliv near Dibuny, north-west from Saint Petersburg, Russia, May 21, 2019Leninskaya Tropa, Sankt-Peterburg, Russia, 197758
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in Pavlovsk, suburb of Saint Petersburg. Russia, May 28, 2019Alleya Molodogo Zhenikha, Pavlovsk, Sankt-Peterburg, Russia, 196620
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, May 30, 2021Unnamed Road, Sankt-Peterburg, Russia
Underside of sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, May 30, 2021Unnamed Road, Sankt-Peterburg, Russia
Sheathed woodtuft mushrooms (Kuehneromyces mutabilis) near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024Russia, Saint Petersburg, Лисий Нос, 197755, Полянская Дорога 41The observations document the presence of sheathed woodtuft mushrooms (Kuehneromyces mutabilis) in various locations around Saint Petersburg, Russia, from 2017 to 2024. The mushrooms were found growing on stumps, fallen trees, and tree branches in parks, forests, and roadside areas. They were often observed in clusters or masses, and sometimes co-occurred with other mushroom species, such as northern honey mushrooms (Armillaria borealis). The observations cover different times of the year, including spring, summer, and fall, suggesting that the mushrooms can fruit throughout the growing season. Overall, the observations provide a record of the distribution and abundance of sheathed woodtuft mushrooms in the region over several years.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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