Crust mushroom Cerioporus mollis (Datronia mollis) on a willow near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, March 14, 2017
Dachnaya ul., Leningradskaya oblast', Russia, 188664Synonyms: Antrodia mollis, Boletus substrigosus, Cerrena mollis, Daedalea lassbergii, Daedalea mollis, Daedaleopsis mollis, Datronia mollis, Polyporus mollis, Polyporus sommerfeltii, Trametes mollis, Trametes serpens.
Common name: common mazegill.
Russian name: Datroniya myagkaya.
Cerioporus mollis is a species of polypore fungus that grows on deciduous trees, particularly willow and alder. In St. Petersburg and Leningrad Oblast, it has been found in urban parks and forests, often on fallen logs or stumps. In north-western Russia, it is widely distributed in temperate forests, typically fruiting from June to October. The fungus produces soft, velvety caps that are 3-10 cm in diameter, with a yellow-brown to reddish-brown color, and a white to cream-colored pore surface.
Crust mushroom Cerioporus mollis (Datronia mollis) on a willow near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, March 14, 2017Dachnaya ul., Leningradskaya oblast', Russia, 188664
Prostrate mushroom Cerioporus mollis (Datronia mollis) on a willow near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, March 14, 2017Dachnaya ul., Leningradskaya oblast', Russia, 188664
Texture of prostrate mushroom Cerioporus mollis (Datronia mollis) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017Unnamed Road, Orekhovo, Leningradskaya oblast', Russia, 188731
Prostrate mushroom Cerioporus mollis (Datronia mollis) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017Unnamed Road, Orekhovo, Leningradskaya oblast', Russia, 188731
Corticioid mushroom Cerioporus mollis (Datronia mollis) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017Unnamed Road, Orekhovo, Leningradskaya oblast', Russia, 188731
Pores of prostrate mushroom Cerioporus mollis (Datronia mollis) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017Unnamed Road, Orekhovo, Leningradskaya oblast', Russia, 188731
Dry branch of hazelnut with a prostrate mushroom Cerioporus mollis (Datronia mollis) in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017Unnamed Road, Orekhovo, Leningradskaya oblast', Russia, 188731
Prostrate mushroom Cerioporus mollis (Datronia mollis) near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019Saint Petersburg, Russia, 197755
Prostrate mushroom Cerioporus mollis (Datronia mollis) on a log in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019Petergof, Saint Petersburg, Russia
Texture of prostrate mushroom Cerioporus mollis (Datronia mollis) on a log in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019Petergof, Saint Petersburg, Russia
Close-up of common mazegill mushroom (Cerioporus mollis) on a dry tree in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, May 16, 2021Zarechnaya Ulitsa, 2, Leningradskaya oblast', Russia, 188667
Common mazegill mushroom (Cerioporus mollis) on a dry tree in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, May 16, 2021Zarechnaya Ulitsa, 2, Leningradskaya oblast', Russia, 188667
Common mazegill mushroom (Cerioporus mollis) on a dry branch on Leninskaya Tropa Trail between Dibuny and Razliv Lake, north-west from Saint Petersburg. Russia, May 24, 2021Leninskaya Tropa, Sankt-Peterburg, Russia
Common mazegill mushrooms (Cerioporus mollis) on a stick near a road west from Kavgolovskoe Lake (Syariunlakhti), near Toksovo. North from Saint Petersburg, Russia, July 26, 2024Продолжение маршрута, Южная улица, Токсовское городское поселение, Всеволожский район, Ленинградская область, Северо-Западный федеральный округ, 188664, РоссияObservations of Cerioporus mollis in Leningrad Oblast and north-western Russia show the fungus grows on various substrates, including willow, hazelnut, and dry tree branches. It was found near Kavgolovskoe Lake, Toksovo, Orekhovo, Lisiy Nos, Sobstvennaya Dacha Park, and Okhta River. The mushroom's texture and pores were observed, with some specimens showing a crust-like or prostrate growth habit. The fungus was spotted during different times of the year, including March, May, and July, indicating its presence throughout the growing season. Locations ranged from 40 miles north to west of Saint Petersburg, suggesting a widespread distribution in the region. The observations highlight the variability in substrate and habitat preferences of Cerioporus mollis in this part of Russia.
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