Winter-fruiting woodland mushrooms (Meottomyces dissimulans) near Dibuny, west from Saint Petersburg. Russia, June 27, 2017Synonyms: Agaricus dissimulans, Agaricus oedipus, Dryophila ochroflavida, Dryophila oedipus, Dryophila olivacea, Dryophila sordida, Flammula sordida, Galerina oedipus, Hemipholiota oedipus, Hypholoma oedipus, Phaeogalera dissimulans, Phaeogalera oedipus, Pholiota dissimulans, Pholiota ochroflavida, Pholiota oedipus, Pholiota olivacea, Psathyrella oedipus.
Russian name: Meottomitses skryvaiushchiysya.
Meottomyces dissimulans is a species of fungus that belongs to the family Helotiaceae. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found to grow on decaying wood, particularly coniferous trees, in moist and shaded areas. The fungus produces small, disc-shaped ascocarps with a brown to dark brown color, and its asci contain 8 spores. It is considered a rare species in the region, with limited distribution and occurrence.
Winter-fruiting woodland mushrooms (Meottomyces dissimulans) near Dibuny, west from Saint Petersburg. Russia, June 27, 2017
Winter-fruiting woodland mushrooms (Meottomyces dissimulans) in a ditch near Dibuny, west from Saint Petersburg. Russia, June 27, 2017
Winter-fruiting woodland mushrooms (Meottomyces dissimulans) in Tarkhovka near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018
Mushrooms Meottomyces dissimulans in a ditch in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, May 19, 2021
Mushrooms Meottomyces dissimulans on rotting leaves in a ditch in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, May 19, 2021
Underside of mushrooms Meottomyces dissimulans in a ditch in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, May 19, 2021
Side view of mushrooms Meottomyces dissimulans in a ditch in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, May 19, 2021Meottomyces dissimulans was observed in various locations in Leningrad Oblast and north-western Russia. The fungus was found near Dibuny, west of Saint Petersburg, on June 27, 2017, growing in woodland areas and ditches. Similar observations were made in Tarkhovka near Sestroretsk on August 27, 2018. In Sergievka Park, Old Peterhof, the fungus was found growing on rotting leaves in a ditch on May 19, 2021. The mushrooms were also observed growing in the same ditch, with detailed views of their underside and side profiles captured. These observations suggest that Meottomyces dissimulans is present in woodland areas and ditches throughout the region, often growing on decaying organic matter. The fungus appears to be widely distributed in Leningrad Oblast and north-western Russia, with sightings recorded across multiple years and locations.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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