Synonyms: Agaricus ringens, Lentinus ringens, Lentinus salicinus, Panus ringens, Panus salicinus, Pocillaria ringens, Pocillaria salicina, Scytinotus ringens.
Common name: winter oysterling.
Russian names: Panellius otkrytyy, Panellius ringens.
Panellus ringens is a species of fungus that grows on decaying wood, particularly deciduous trees. In St. Petersburg, Leningrad Oblast, and north-western Russia, it has been found to fruit in late summer to early fall, typically on logs, stumps, and branches of birch, aspen, and alder. The fungus produces small to medium-sized, funnel-shaped or wavy caps that are yellowish-brown to brown in color, with a white to pale yellow spore print. It is considered a rare species in the region, but can be locally common in areas with abundant deciduous wood debris.
Mushrooms of Panellus ringens were observed growing on various substrates in Leningrad Oblast and north-western Russia. On March 26, 2017, they were found on a fallen alder tree near an old brick factory between Pesochnaya and Dibuny. Later, on April 3, 2017, they were observed on dry willows near Chornaya River in the same area. The mushrooms were also spotted in Sosnovka Park in Saint Petersburg on April 22, 2017, growing on birch trees. Additional observations included growth on fallen birch near Lisiy Nos on May 6, 2019, and co-occurrence with Exidia nigricans. The fungus was found to thrive in different environments, from dry willows to snow-covered areas, highlighting its adaptability. These sightings provide insight into the habitat preferences and distribution of Panellus ringens in north-western Russia.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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