Synonyms: Agaricus destrictus, Agaricus fastigiatus, Agaricus rimosus, Agaricus schistus, Agmocybe rimosa, Gymnopus rimosus, Inocybe fastigiata, Inocybe pseudofastigiata, Inocybe schista, Inocybe umbrinella.
Common name: split fibrecap.
Russian names: Volokonnitsa voloknistaya, Volokonnitsa treshchinovataya, Volokonnitsa konicheskaya.
Extract from Wikipedia article: Inocybe rimosa (formerly known as Inocybe fastigiata) is a poisonous mushroom native to Europe. Its toxic ingredient is muscarine, discovered during the 1930s.
Inocybe rimosa is a species of mushroom in the family Inocybaceae. It has a bell-shaped to convex cap, 2-5 cm in diameter, with a dry, radially fibrillose surface, and a conical to cylindrical stem, 2-6 cm tall and 0.4-1 cm thick. The fungus is found in St. Petersburg, Leningrad Oblast, and north-western Russia, typically growing in association with trees, particularly birch and spruce, in moist, acidic soils. Fruiting bodies appear in summer to early autumn, often in groups or rings.
Inocybe rimosa mushrooms (Inocybe fastigiata, Russian name Volokonnotsa) near Pilbasennaya Alley in Pavlovsk Park. Pavlovsk near Saint Petersburg, Russia, July 28, 2016
Беседка великому князю Вячеславу Константиновичу, Rozovopavilyonnaya al., Pavlovsk, g. Sankt-Peterburg, Russia, 196621
Inocybe rimosa mushrooms (Inocybe fastigiata, Russian name Volokonnotsa) on Old Sylvia Alley in Pavlovsk Park. Pavlovsk near Saint Petersburg, Russia, July 28, 2016Беседка великому князю Вячеславу Константиновичу, Rozovopavilyonnaya al., Pavlovsk, g. Sankt-Peterburg, Russia, 196621
Inocybe rimosa mushrooms (Inocybe fastigiata, Russian name Volokonnotsa) on a lawn at Old Sylvia Alley in Pavlovsk Park. Pavlovsk near Saint Petersburg, Russia, July 28, 2016Беседка великому князю Вячеславу Константиновичу, Rozovopavilyonnaya al., Pavlovsk, g. Sankt-Peterburg, Russia, 196621
Fibercap mushrooms Inocybe rimosa (Inocybe fastigiata, Russian name Volokonnotsa) on roadside in Dibuny, north-west from Saint Petersburg, Russia, August 9, 2016Unnamed Road, g. Sankt-Peterburg, Russia, 197758
Split fibrecap mushrooms (Inocybe rimosa) on roadside near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017Unnamed Road, Sankt-Peterburg, Russia, 197758
Split fibrecap mushrooms (Inocybe rimosa) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017Pamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Split fibrecap mushrooms (Inocybe rimosa)(?) on roadside near Lisiy Nos. West from Saint Petersburg, Russia, August 23, 2017Primorskoye Shosse, 16, Lisy Nos, Sankt-Peterburg, Russia, 197755
Fibrecap mushrooms Inocybe rimosa in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, August 18, 2018Fedotovskaya Dorozhka, 32, Sestroretsk, Ленинградская, Russia, 197701
Brown fibrecap mushrooms Inocybe rimosa in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, August 18, 2018Fedotovskaya Dorozhka, 32, Sestroretsk, Ленинградская, Russia, 197701
Fibrecap mushrooms Inocybe rimosa in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, August 18, 2018Unnamed Road, Sankt-Peterburg, Russia, 197701
Caps of fibrecap mushrooms Inocybe rimosa in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, August 18, 2018Unnamed Road, Sankt-Peterburg, Russia, 197701
Split fibrecap mushrooms (Inocybe rimosa) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Russia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29о
Underside of a split fibrecap mushroom (Inocybe rimosa) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Russia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29о
Split fibrecap mushrooms (Inocybe rimosa) in moss on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Russia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Torn caps of split fibrecap mushrooms (Inocybe rimosa) mushrooms on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Russia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29щ
Spores (in KOH) of split fibrecap mushrooms (Inocybe rimosa) (with pointed caps) collected earlier 7/23/2024 in Gardens of Polytechnic Institute, in St. Petersburg, Russia, August 22, 2024
Spores (in KOH) of split fibrecap mushrooms (Inocybe rimosa) collected earlier 7/23/2024 in Gardens of Polytechnic Institute, in St. Petersburg, Russia, August 22, 2024Observations of Inocybe rimosa were made in various locations in Leningrad Oblast and north-western Russia. The fungus was found in Pavlovsk Park near Saint Petersburg on July 28, 2016, with multiple sightings on lawns and alleys. Further observations were made in Dibuny, also near Saint Petersburg, on August 9, 2016, and July 15, 2017. Additional sightings occurred in Gardens of Polytechnic Institute in Saint Petersburg on July 29, 2017, and July 23, 2024. The fungus was also found in Tarkhovka near Sestroretsk on August 18, 2018, and near Lisiy Nos on August 23, 2017. The observations span several years, with consistent sightings in the region, indicating a stable presence of Inocybe rimosa in the area. Spore samples were also collected and examined in KOH on August 22, 2024.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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