 Birch trees in northern part of Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Forest in northern part of Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Fireweed in northern part of Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Fall colors in northern part of Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Swampy area in northern part of Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Fall colors with fireweed in northern part of Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Fall colors of fireweed in northern part of Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Birch trees in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch and maple trees in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Polypore mushrooms Hapalopilus rutilans (Hapalopilus nidulans) taken from a dry birch in northern part of Sosnovka Park. Saint Petersburg, Russia, April 26, 2017
 Polypore mushroom Hapalopilus rutilans (Hapalopilus nidulans) on a dry birch in northern part of Sosnovka Park. Saint Petersburg, Russia, April 26, 2017
 Birch trees in eastern part of Sosnovka Park at morning. Saint Petersburg. Russia, September 9, 2007
 Birch trees of Karasiovoe Lake in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Birch milkcap mushroom (Lactarius tabidus) in swampy part in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, October 20, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, October 25, 2016
 Birch trees with snow in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Birch trees at snowfall in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Maple trees in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Maple trees near a memorial in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 A lake in northern part of Sosnovka Park. Saint Petersburg, Russia, August 7, 2001
 Pond in northern part of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch trees in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, October 5, 2017
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Demolished garages in northern area in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Birch forest in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch alley in eastern part of Sosnovka Park. Saint Petersburg, Russia, August 14, 2007
 Birch alley in central part of Sosnovka Park. Saint Petersburg. Russia, September 9, 2007
 Birches near Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Island of Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Rope swing for diving to a lake in northern part of Sosnovka Park at morning. Saint Petersburg. Russia, September 9, 2007
 Tawny grisette mushroom (Amanita fulva) in northern part of Sosnovka Park. Saint Petersburg. Russia, September 9, 2007
 Dog Pond (Sobachye Ozero, Vosmiorka, or Bublik) in northern part of Sosnovka Park in Saint Petersburg, Russia, June 22, 2010
 Birch leaves covering a road in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birch alley in north area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Fall colors of birch alley in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Yellow foliage near Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Fall colors of Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, December 1, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, June 11, 2009
 Birch trees in Sosnovka Park in Saint Petersburg, Russia, June 22, 2010
 Birch trees and logs in Sosnovka Park. Saint Petersburg, Russia, May 30, 2009
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, November 23, 2016
 Birch and mountain ash trees in Sosnovka Park. Saint Petersburg, Russia, May 31, 2009
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 3, 2018
 Fall colors of birch alley in north area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Road with birch trees in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in Sosnovka Park at morning. Saint Petersburg, Russia, November 6, 2016
 Snowy birch trees in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch trees from Listvennaya Alley in 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 fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Fall colors of birch trees behind the war monument in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Mushrooms Naucoria bohemica(?) taken from a lawn in west part of Sosnovka Park. Saint Petersburg, Russia, September 5, 2017
 Toadstools (small mushrooms) collected in swampy part in Sosnovka Park. Saint Petersburg, Russia, October 24, 2016
 Club foot mushrooms (Ampulloclitocybe clavipes) in west part of Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Larch trees in Sosnovka Park. Saint Petersburg, Russia, April 13, 2017
 Trees at snowfall in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Snowy trees in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Trees in snow in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Trees during snowfall in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Snowy trees in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Snowy trees in Sosnovka Park. Saint Petersburg, Russia, April 13, 2017
 Black rattlesnake near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Pine trees in Sosnovka Park. Saint Petersburg, Russia, October 25, 2016
 Fresh snow on trees in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Larch trees with snow in Sosnovka Park. Saint Petersburg, Russia, April 13, 2017
 Larch trees at snowfall in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Discarded doll s head on extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Birch alley in northern area of Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Birch forest in northern area of Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Larch and pine trees at snowfall in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Dog lichen (Peltigera membranacea) on a stump near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 The Ochre Bracket mushrooms (Trametes ochracea) nibbled by rodents taken from northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Wood decay fungus (mushroom) Corticium roseum on willow in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Birch forest in northern area of Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 Edible birch bolete mushroom, Russian name Podberyozovik, in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Birch bolete mushroom Leccinum schistophilum(?) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Tinder mushroom Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Snowy waxcap mushrooms (Cuphophyllus virgineus) under maple trees in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Northern part of Central (Konstantinovsky) Rozovopavilionny Pond in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, October 14, 2016
 Birch trees in fog near northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Rusty brown fungus Asterodon ferruginosus (Asterodon ferruginosum) taken from northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 A stump with tinder mushrooms Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Flavidoporia pulvinascens (Antrodia pulvinascens) mushroom taken from a tree stump in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Cluster of the Ochre Bracket mushrooms (Trametes ochracea) near Kamenka River near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Pores of a tinder fungus (mushroom) Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Sticky bolete mushrooms (Suillus viscidus) under larch trees on Svetlanovsky Prospect near Sosnovka Park. Saint Petersburg, Russia, September 28, 2017
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, April 16, 2017
 Young leaves on a birch in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017
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