
Reddish-brown crust fungus
Hymenochaete tabacina (syn. Pseudochaete tabacina, currently often treated as Hydnoporia tabacina) on a fallen oak(?) in a state nature reserve "North Shore of Neva Gulf" (Zakaznik Severnoe Poberezhye Nevskoy Guby) on the northern coast of the Gulf of Finland, near Lisiy Nos. Saint Petersburg, Russia, October 7, 2025