 Birch alley in northern area of Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Birch forest in northern area of Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 Birch trees of Karasiovoe Lake in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch bolete mushroom Leccinum schistophilum(?) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch alley behind a monument in Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Ducklings in a pond in northern area of Sosnovka Park in Saint Petersburg. Russia, June 24, 2010
 Pond Karasiovoe Ozero and birches in northern area of Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 Family of ducks in pond Karasiovoe Ozero in northern area of Sosnovka Park in Saint Petersburg. Russia, June 24, 2010
 Early birch bolete mushroom (Leccinum scabrum(?), Podberiozovik) near Sobachye Lake in Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Birch forest in Sosnovka Park in Saint Petersburg, Russia, June 22, 2010
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, June 11, 2009
 Small Northern Honey mushrooms (Armillaria borealis(?)) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Birch forest in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in northern part of Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Birch trees in northern part of Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Edible birch bolete mushroom, Russian name Podberyozovik, in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 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 in Saint Petersburg, Russia, June 22, 2010
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, June 11, 2009
 Demolished garages in northern area in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Swampy area in northern part of Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Karasiovoe Lake in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birch alley in Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 Island of Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birches near Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Polypore mushroom Hapalopilus rutilans (Hapalopilus nidulans) on a dry birch in northern part of Sosnovka Park. Saint Petersburg, Russia, April 26, 2017
 Polypore mushrooms Hapalopilus rutilans (Hapalopilus nidulans) taken from a dry birch in northern part of Sosnovka Park. Saint Petersburg, Russia, April 26, 2017
 Dog Pond (Sobachye Ozero, Vosmiorka, or Bublik) in northern part of Sosnovka Park in Saint Petersburg, Russia, June 22, 2010
 Orange mushrooms on a tree stump in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Fly agaric mushroom (Amanita muscaria) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Rusty mushrooms on a dead tree in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Fall colors of Bublik Pond in northern area 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
 Camping site for homeless persons(?) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Birch milkcap mushrooms (Lactarius tabidus) in Sosnovka Park. Saint Petersburg, Russia, June 22, 2017
 Birch milkcap mushrooms (Lactarius tabidus) in Sosnovka Park. Saint Petersburg, Russia, June 30, 2017
 Antrodiella or may be Trametes mushrooms on a fallen birch in Sosnovka Park. Saint Petersburg, Russia, June 25, 2017
 Birch alley in north area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birch foliage in south area of Sosnovka Park. Saint Petersburg, Russia, September 23, 2013
 Birch alley in swampy area in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Pond in Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Narrow alley in Sosnovka Park. Saint Petersburg, Russia, June 13, 2014
 Swampy area of Sosnovka Park. Saint Petersburg, Russia, May 29, 2014
 Forest in northern part of Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Rusty brown mushrooms on a rotten tree stump in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, May 17, 2011
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, May 30, 2009
 Red velvety patches on a birch leaf caused by the eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Birch milkcap mushrooms (Lactarius tabidus, Russian name Gorkushka) in Sosnovka Park in Saint Petersburg. Russia, June 24, 2010
 Red velvety patches on a birch leaf (velvet erineum galls) in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Birch milkcap mushroom (Lactarius tabidus) in swampy part in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Birch milkcap mushrooms (Lactarius tabidus) on peat soil in Sosnovka Park. Saint Petersburg, Russia, June 22, 2017
 Fall colors of birch alley in north area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Common bonnet mushrooms (Mycena galericulata) on a rotten stump in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Coral slime mold Ceratiomyxa fruticulosa var. porioides among dry birch leaves in Sosnovka Park. Saint Petersburg, Russia, June 30, 2017
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Road in a birch forest in Sosnovka Park. Saint Petersburg, Russia, May 17, 2011
 Road through birch forest in Sosnovka Park. Saint Petersburg, Russia, May 17, 2011
 Birch forest in Sosnovka Park. Saint Petersburg, Russia, September 29, 2016
 Birch milkcap mushrooms (Lactarius tabidus) in swampy area in Sosnovka Park. Saint Petersburg, Russia, July 6, 2017
 Mica Cap mushrooms (Coprinellus micaceus) in Sosnovka Park. Saint Petersburg, Russia, June 13, 2014
 Sobachye Lake (Vosmiorka, or Bublik) in Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Road through birch forest east from Leypyasuo. North from Saint Petersburg, Russia, June 7, 2014
 Black cap birch bolete mushroom (Leccinum variicolor) in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Brown birch bolete mushroom (Leccinum scabrum) in swampy area in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
 Group of birch milkcap mushrooms (Lactarius tabidus) in swampy area in Sosnovka Park. Saint Petersburg, Russia, July 6, 2017
 Mottled cap birch bolete mushroom (Leccinum variicolor) in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
 Birch forest after snowfall in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Birch forest with snow in Sosnovka Park. Saint Petersburg, Russia, April 22, 2017
 Road through birch forest in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Snowy ditch in swamp area of Sosnovka Park. Saint Petersburg, Russia, December 31, 2014
 Red velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Ghost shield mushrooms (Pluteus pellitus) on a rotten birch log in swampy area in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
 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
 Birch forest in fresh snow in Sosnovka Park. Saint Petersburg, Russia, November 25, 2016
 Back lit birch forest with blueberry bushes in Sosnovka Park. Saint Petersburg, Russia, May 30, 2009
 Birch forest in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest near Bublik Lake in Sosnovka Park. Saint Petersburg, Russia, September 23, 2013
 Birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Swampy area of Sosnovka Park. Saint Petersburg, Russia, June 11, 2009
 Ochre Bracket mushrooms (Trametes ochracea) on a stump of small birch in swampy area of Sosnovka Park. Saint Petersburg, Russia, April 8, 2017
 Pair of ghost shield mushrooms (Pluteus pellitus) on a rotten birch log in swampy area in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
 Fungus (mushroom) Cylindrobasidium evolvens growing on fallen birch leaves taken from peat area in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Birch forest around a pond near Listvennaya Alley 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
 A narrow birch alley over a marshy forest in Sosnovka Park. Saint Petersburg, Russia, April 11, 1999.
 Road in swamp area of Sosnovka Park in fog. Saint Petersburg, Russia, June 26, 2010
 Alley in swamp area of Sosnovka Park in fog. Saint Petersburg, Russia, June 26, 2010
 Brick Caps mushrooms (Hypholoma lateritium, Hypholoma sublateritium) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Cottongrass (Eriophorum vaginatum, Russian name Pushitsa) in swampy area of Sosnovka Park. Saint Petersburg, Russia, May 26, 2014
 Ochre Bracket mushrooms (Trametes ochracea) collected from a stump of small birch in swampy area of Sosnovka Park. Saint Petersburg, Russia, April 8, 2017
 Cross section of ghost shield mushrooms (Pluteus pellitus) taken from a rotten birch log in swampy area in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
 Fungus (mushroom) Cylindrobasidium evolvens growing on fallen birch leaves on peat in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Fall colors of birch forest from 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
 Club foot mushrooms (Ampulloclitocybe clavipes) in a birch forest in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Birch milkcap mushrooms (Lactarius tabidus, Lactarius theiogalus) in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
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