 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Black cap birch bolete mushroom (Leccinum variicolor) in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
 Birch forest after snowfall in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Mottled cap birch bolete mushroom (Leccinum variicolor) in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
 Birch forest in fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch forest in fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Snowy path in a birch forest in Sosnovka Park. Saint Petersburg, Russia, November 10, 2016
 Road through birch forest in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Road in birch forest in fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch forest near Bublik Lake in Sosnovka Park. Saint Petersburg, Russia, September 23, 2013
 Birch forest in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest around a pond near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Rusty colors of birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Fall colors of birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch milkcap mushrooms (Lactarius tabidus, Lactarius theiogalus) in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
 Club foot mushrooms (Ampulloclitocybe clavipes) in a birch forest in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Forest road in Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, October 8, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, October 25, 2016
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, November 8, 2016
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, October 20, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, November 23, 2016
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, December 1, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, October 20, 2016
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, October 25, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, December 1, 2016
 Small birch Bolete mushroom (Leccinum variicolor) on a forest path in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch trees in Sosnovka Park at morning. Saint Petersburg, Russia, November 6, 2016
 Birch alley at evening in Sosnovka Park. Saint Petersburg, Russia, November 10, 2016
 Birch alley in Sosnovka Park at morning. Saint Petersburg, Russia, November 6, 2016
 Birch alley in mist in Sosnovka Park. Saint Petersburg, Russia, November 10, 2016
 Snowy birch trees in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 3, 2018
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Birch trees in fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch alley with maple leaves in Sosnovka Park. Saint Petersburg, Russia, October 20, 2016
 Birch alley in swampy area in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Birch alley in fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch milkcap mushrooms (Lactarius tabidus(?)) in Sosnovka Park. Saint Petersburg, Russia, July 23, 2016
 Birch milkcap mushrooms (Lactarius tabidus) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
 Road with birch trees in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Brown birch bolete mushroom (Leccinum scabrum(?)) in Sosnovka Park. Saint Petersburg, Russia, July 20, 2016
 Birch foliage in south area of Sosnovka Park. Saint Petersburg, Russia, September 23, 2013
 Birch alley in central part of Sosnovka Park. Saint Petersburg. Russia, September 9, 2007
 Birch trees from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Oyster mushrooms (Pleurotus ostreatus, Russian name Veshenka) on a birch in Sosnovka Park. Saint Petersburg, Russia, December 8, 2016
 Brown birch bolete mushroom (Leccinum scabrum) on roadside in Sosnovka Park. Saint Petersburg, Russia, July 20, 2016
 Birch milkcap mushrooms (Lactarius tabidus(?), Russian name Gorkushka) in Sosnovka Park. Saint Petersburg, Russia, July 23, 2016
 Yellowing curtain crust mushrooms (Stereum subtomentosum) on a birch log in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Purple toothed polypore mushrooms (Trichaptum biforme) on a birch log in Sosnovka Park. Saint Petersburg, Russia, August 20, 2016
 Purple toothed polypore mushrooms (Trichaptum biforme) on a birch log in Sosnovka Park. Saint Petersburg, Russia, December 31, 2016
 Birch milkcap mushrooms (Lactarius tabidus) in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Some crustous fungus at the base of a birch tree in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
 Timber mushrooms Lentinellus castoreus on a birch log in Sosnovka Park. Saint Petersburg, Russia, September 2, 2017
 Birch tree log damaged by insect larvae in Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Some crustous fibrillous fungus on a birch tree in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
 Birch trees in eastern part of Sosnovka Park at morning. Saint Petersburg. Russia, September 9, 2007
 Fall colors of birch trees behind the war monument in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, May 17, 2011
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, May 30, 2009
 A birch alley in Sosnovka Park near crossing of Svetlanovskiy and Tikhoretskiy Prospect. Saint Petersburg, Russia, September 3, 2002
 Group of birch milkcap mushrooms (Lactarius tabidus) in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Caps of timber mushrooms Lentinellus castoreus on a birch log in Sosnovka Park. Saint Petersburg, Russia, September 2, 2017
 Birch trees of Karasiovoe Lake in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, June 11, 2009
 Road in a birch forest in Sosnovka Park. Saint Petersburg, Russia, May 17, 2011
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Birch forest in Sosnovka Park in Saint Petersburg, Russia, June 22, 2010
 Road through birch forest in Sosnovka Park. Saint Petersburg, Russia, May 17, 2011
 Birch bolete mushroom Leccinum schistophilum(?) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Hydnoid fungus Mycoacia aurea(?) on the underside of a rotten birch log in Sosnovka Park. Saint Petersburg, Russia, September 2, 2017
 Soft porous fungus covering rotten birch bark in Sosnovka Park. Saint Petersburg, Russia, September 2, 2017
 Edible birch bolete mushroom, Russian name Podberyozovik, in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Birch forest with snow in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Black cap birch bolete mushroom (Leccinum variicolor) in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Birch woodwart fungus (Jackrogersella multiformis, Annulohypoxylon multiforme) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 23, 2017
 Orange plasmodium of many-headed slime mold Physarum polycephalum on a birch log in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Svetlanovsky Prospect from Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Old birch bolete mushroom (bog bolete, Leccinum holopus) in Sosnovka Park. Saint Petersburg, Russia, October 24, 2016
 Birch polypore mushroom Piptoporus betulinus (bracket fungus Fomitopsis betulina, Russian name Trutovik) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
 Back lit birch forest with blueberry bushes in Sosnovka Park. Saint Petersburg, Russia, May 30, 2009
 Birch forest in northern area of Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Birch milkcap mushrooms (Lactarius tabidus, Lactarius theiogalus) taken from Sosnovka Park. Saint Petersburg, Russia, October 24, 2016
 White birch bolete mushroom (bog bolete, Leccinum holopus) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
 Alley in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 20, 2016
 Area near Svetlanovsky Prospect in Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Trees near Svetlanovsky Prospect in Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Leaf parachute mushrooms (Marasmius epiphyllus) on a rotten leaf of birch taken from Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Birch forest in northern area of Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 A narrow birch alley over a marshy forest in Sosnovka Park. Saint Petersburg, Russia, April 11, 1999.
 Some small brown mushrooms in moss in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
 Scalycap mushrooms (Pholiota mixta)(?) in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
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