Extract from Wikipedia article: Onnia tomentosa is a species of fungus in the family Hymenochaetaceae commonly known as the woolly velvet polypore. It is frequently found in coniferous forests at higher altitudes, often growing in large groups, rather rare at lower altitudes. It is a plant pathogen, and causes tomentosus root rot, primarily in spruce. It was formerly known as Inonotus tomentosum (Fr.) Teng until molecular phylogenetic analysis led to major revisions in the classification of the Hymenochaetaceae.
Woolly velvet polypore mushrooms (Onnia tomentosa)(?) in fire ditch in Lembolovo, 40 miles north from Saint Petersburg. Russia, July 5, 2017 Unnamed Road, Leningradskaya oblast', Russia, 188695
Upper view of woolly velvet polypore mushrooms (Onnia tomentosa)(?) in fire ditch in Lembolovo, 40 miles north from Saint Petersburg. Russia, July 5, 2017 Unnamed Road, Leningradskaya oblast', Russia, 188695
Woolly velvet polypore mushrooms (Onnia tomentosa) in Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, September 4, 2018 Lindulovskaya Doroga, Leningradskaya oblast', Russia
Pores of a woolly velvet polypore mushroom (Onnia tomentosa) in Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, September 4, 2018 Unnamed Road, Leningradskaya oblast', Russia
Woolly velvet polypore mushroom (Onnia tomentosa) in Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, September 4, 2018 Unnamed Road, Leningradskaya oblast', Russia
Woolly velvet polypore mushrooms (Onnia tomentosa)(?) under broadleaf trees between houses near Toreza Prospect. Saint Petersburg, Russia, September 4, 2018 Prospekt Toreza, 94, Sankt-Peterburg, Russia, 194017
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Search of mushroom species for given keywords "Onnia tomentosa" was done through
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