Brown webcap mushrooms Cortinarius betuletorum near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016
Primorskoye sh., g. Sankt-Peterburg, Russia, 197755Synonyms: Agaricus raphanoides, Cortinarius raphanoides, Dermocybe raphanoides, Hydrocybe betuletorum.
Russian name: Pautinnik redechnyy.
Cortinarius betuletorum is a species of fungus that grows in association with birch trees. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found to fruit in late summer to early autumn, typically in moist, acidic soils under birch stands. The cap is 2-5 cm in diameter, bell-shaped to convex, and reddish-brown to yellowish-brown in color. The gills are adnexed to emarginate, and the spores are rust-brown. It is considered a rare species in the region, but can be locally common in suitable habitats.
Brown webcap mushrooms Cortinarius betuletorum near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016Primorskoye sh., g. Sankt-Peterburg, Russia, 197755The fungus Cortinarius betuletorum was observed in the Leningrad Oblast and north-western Russia, specifically near Lisiy Nos, south of Saint Petersburg. On September 3, 2016, brown webcap mushrooms were found in this region. The observations suggest that C. betuletorum grows in association with birch trees, as indicated by its species name "betuletorum", which means "of birch". The mushrooms were likely found in a forest or woodland area, given the presence of birch trees in the region. The observation on September 3, 2016, suggests that the fungus fruits in late summer to early fall in this region. Further observations are needed to fully understand the distribution and habitat preferences of C. betuletorum in north-western Russia. The species may have a wider range in the region, and additional studies could provide more insight into its ecology.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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