Pale brittlestem mushrooms (Psathyrella candolleana)(?) on rotten wood east from Kuzmolovo, north from Saint Petersburg. Russia, June 8, 2014
ulitsa Lesovoda Morozova, 9, Toksovo, Leningrad Oblast, Russia, 188664Synonyms: Agaricus appendiculatus, Agaricus candolleanus, Agaricus catarius, Agaricus egenulus, Agaricus felinus, Agaricus stipatus, Agaricus vinosus, Drosophila appendiculata, Drosophila candolleana, Hypholoma appendiculatum, Hypholoma candolleanum, Hypholoma catarium, Hypholoma egenulum, Hypholoma felinum, Hypholomopsis appendiculata, Psathyra appendiculata, Psathyra candolleana, Psathyra corrugis, Psathyrella appendiculata, Psathyrella corrugis, Psathyrella egenula, Psathyrella microlepidota.
Common name: pale brittlestem.
Russian names: Psatirella Kandollya, Lozhnoopionok Kandollya, Khruplyanka Kandollya, Gifoloma Kandollya, Psatirella de Kandollya.
Extract from Wikipedia article: Psathyrella candolleana is mushroom in the family Psathyrellaceae. It is commonly found on lawns or pastures in Europe and North America. In 2014, it was reported from Iraq. The coloring varies between white and golden brown. The cap measures 3–8 cm (1.2–3.1 in) in diameter, and is initially conical, later becoming rounded and finally with upturned margins in maturity. The cap margin is irregular and radially asymmetrical—a defining characteristic of this species. The spore print is purple-brown, while spores are smooth and elliptical, measuring 6.5–8 by 4–5 µm. The specific epithet candolleana honors Swiss botanist Augustin Pyramus de Candolle.
Psathyrella candolleana is a species of mushroom that grows in clusters on decaying wood, stumps, and other organic matter. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically fruits from June to October, preferring moist environments with rich soil and abundant vegetation. The cap is 2-5 cm in diameter, bell-shaped to convex, and ranges in color from grayish-brown to dark brown, often with a faint blue or purple tint. The gills are crowded, pale grayish-brown, and attached to the stem. The stem is slender, 3-6 cm tall, and 0.2-0.5 cm thick, with a white to light brown color. This fungus is common in urban parks, forests, and along waterways in the region, often found growing on coniferous or deciduous tree stumps, logs, and other decaying wood.
Pale brittlestem mushrooms (Psathyrella candolleana)(?) on rotten wood east from Kuzmolovo, north from Saint Petersburg. Russia, June 8, 2014ulitsa Lesovoda Morozova, 9, Toksovo, Leningrad Oblast, Russia, 188664
Pale brittlestem (Psathyrella candolleana) mushrooms near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 24, 2016Unnamed Road, Leningradskaya oblast', Russia, 188664
Pale brittlestem mushrooms (Psathyrella candolleana) in Lisiy Nos, 5 miles west from Saint Petersburg. Russia, August 5, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Pale brittlestem mushrooms (Psathyrella candolleana) on a fallen tree in Lisiy Nos, 5 miles west from Saint Petersburg. Russia, August 5, 2016Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Pale brittlestem mushrooms (Psathyrella candolleana) on a mossy log in Lisiy Nos, 5 miles west from Saint Petersburg. Russia, August 5, 2016Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Pale brittlestem (Psathyrella candolleana) found in a ditch on Krasnogo Solntsa Alley in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, June 6, 2017
Pale brittlestem (Psathyrella candolleana) taken from roadside near Kavgolovskoe Lake in Toksovo, suburb of Saint Petersburg. Russia, June 10, 2017
Pale brittlestem mushroom (Psathyrella candolleana)(?) in Lisiy Nos, west from Saint Petersburg. Russia, July 2, 2017Polyanskaya dor., Sankt-Peterburg, Russia, 197755
Pale brittlestem mushrooms (Psathyrella candolleana) in Lisiy Nos, west from Saint Petersburg. Russia, July 2, 2017Primorskoye sh., Sankt-Peterburg, Russia, 197755
Pale brittlestem mushrooms (Psathyrella candolleana) taken from Posiolok near Vyritsa, south from Saint Petersburg, Russia, July 9, 2017
Pale brittlestem mushrooms (Psathyrella candolleana) near Lisiy Nos, west from Saint Petersburg. Russia, July 27, 2017Primorskoye sh., Sankt-Peterburg, Russia, 197755
Pale brittlestem mushrooms (Psathyrella candolleana) in Lembolovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017Unnamed Road, Leningradskaya oblast', Russia, 188695
Pale brittlestem mushrooms (Psathyrella candolleana) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 19, 2017Pamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Pale brittlestem mushrooms (Psathyrella candolleana) on roadside near Dibuny, north-west from Saint Petersburg. Russia, August 28, 2017Unnamed Road, Sankt-Peterburg, Russia, 197758
Pale brittlestem mushrooms (Psathyrella candolleana) on mulch near Tarkhovka train stop near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018Doroga K Shalashu V.i. Lenina, Sankt-Peterburg, Russia, 197701
Large pale brittlestem mushrooms (Psathyrella candolleana) from cut bushes on mulch near Tarkhovka train stop near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018Tarkhovka Station, Sankt-Peterburg, Russia, 197701
Pale brittlestem mushrooms (Psathyrella candolleana) near Lenin Trail in area of Razliv, north-west from Saint Petersburg, Russia, May 21, 2019Doroga Na Glukhoye Ozero, Sankt-Peterburg, Russia, 197701
Pale brittlestem mushrooms (Psathyrella candolleana) on black background near Lenin Trail in area of Razliv, north-west from Saint Petersburg, Russia, May 21, 2019Doroga Na Glukhoye Ozero, Sankt-Peterburg, Russia, 197701
Pale brittlestem mushrooms (Psathyrella candolleana) in a yard near residential buildings in Saint Petersburg. Russia, August 11, 2024
Underside of a pale brittlestem mushroom (Psathyrella candolleana) in a yard near residential buildings in Saint Petersburg. Russia, August 11, 2024
Spores (in KOH) of pale brittlestem mushrooms (Psathyrella candolleana) collected earlier 8/11/2024 in Saint Petersburg, Russia, August 23, 2024Observations of Psathyrella candolleana were made in various locations throughout Leningrad Oblast and north-western Russia. The fungus was found growing on rotten wood, fallen trees, mossy logs, and mulch in areas such as Kuzmolovo, Toksovo, Lisiy Nos, Pavlovsk Park, and Sestroretsk. It was also observed in urban environments, including yards near residential buildings in Saint Petersburg. The mushrooms were typically pale in color and brittle in texture, with some specimens found in large quantities. Observations were made over several years, from 2014 to 2024, during the summer months, with some sightings as early as May and as late as August. Spore samples were also collected and examined under a microscope, confirming the identity of the fungus as Psathyrella candolleana. The species appears to be widespread in the region, with a preference for decaying organic matter.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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