A fungus (?) on a birch, Sheltowee Trail near Chimney Top Rock. Red River Gorge, Kentucky, November 6, 1999.
Malformed white birch bolete mushroom (bog bolete, Leccinum holopus) with a swollen stem damaged by gall-forming fungus near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, September 23, 2015
White birch bolete mushroom (bog bolete, Leccinum holopus) damaged by fungus near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, September 23, 2015
Birch polypore mushroom Piptoporus betulinus (bracket fungus, Russian name Trutovik) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
Birch polypore mushroom Piptoporus betulinus (bracket fungus, Russian name Trutovik) in Oselki, south from Saint Petersburg, Russia, August 29, 2016
Rotten blackened tinder polypore mushrooms (bracket fungus, Fomes fomentarius) on a birch log in Lisiy Nos, west from Saint Petersburg. Russia, October 9, 2016
Tinder polypore mushrooms (bracket fungus, Fomes fomentarius) on a birch log in Dibuny, north-west from Saint Petersburg, Russia, October 23, 2016
Tinder conk mushroom (polypore fungus Fomes fomentarius) on a dead birch in Udelny Park. Saint Petersburg, Russia, February 12, 2017
Willow bracket fungus (Phellinus igniarius mushrooms) on a birch near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Crust of fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Texture of crust of fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Thin crust of fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Spreading fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Willow bracket fungus (Phellinus igniarius mushrooms) on a birch tree in Yuntolovsky Park. Saint Petersburg, Russia, February 23, 2017
Tinder conk mushroom (polypore fungus Fomes fomentarius) on a birch in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017
Bracket fungus Red-Belt Conk (polypore mushroom Fomitopsis pinicola) on a birch in area of Dibuny - Pesochny near Saint Petersburg. Russia, March 4, 2017
Old jelly rot fungus (Merulius tremellosus mushrooms) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
Big jelly rot fungus (Merulius tremellosus mushrooms) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
Jelly rot fungus (Merulius tremellosus mushrooms) with snow on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
Decaying basidiome of jelly rot (Merulius tremellosus mushrooms) with a saprobic fungus Botryobasidium subcoronatum on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
Jelly rot fungus (Merulius tremellosus mushrooms) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
Caps of jelly rot fungus (Merulius tremellosus mushrooms) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
Annulohypoxylon multiforme fungus (family Xylariaceae) on a birch near Lisiy Nos, west from Saint Petersburg. Russia, March 16, 2017
Small Witch s Broom (densely branched small twigs) on a birch induced by a parasitic fungus Taphrina betulina(?) near Morskaya, west from Saint Petersburg. Russia, March 16, 2017
Tinder conk mushroom (polypore fungus Fomes fomentarius) on a birch in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
Fungus (mushroom) Cylindrobasidium evolvens growing on fallen birch leaves on peat in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
Corticioid fungus on birch tree in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
Fungus (mushroom) Cylindrobasidium evolvens growing on fallen birch leaves taken from peat area in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
Birch polypore mushroom with some mold like fungus in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
Mycelium of a fungus on a birch polypore mushroom in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
Birch polypore mushroom Piptoporus betulinus (bracket fungus) in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 2017
