Extract from Wikipedia article: Armillaria borealis is a species of mushroom in the Physalacriaceae family. Phylogenetic analysis of ribosomal DNA has shown that within the genus Armillaria, this species is most closely related to A. solidipes and A. gemina.
Young honey mushrooms Armillaria borealis(?) in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013 Plyazhnaya ulitsa, 29, Sestroretsk, Saint Petersburg, Russia, 190000
Young honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013 Dubkovskoye sh., 77, Sestroretsk, g. Sankt-Peterburg, Russia, 197706
Cluster of young honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013 Dubkovskoye sh., 77, Sestroretsk, g. Sankt-Peterburg, Russia, 197706
Emerging honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013 Dubkovskoye sh., 77, Sestroretsk, g. Sankt-Peterburg, Russia, 197706
Honey mushrooms Armillaria borealis(?) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 9, 2013 naberezhnaya Reki Karpovki, Saint Petersburg, Russia, 190000
Honey mushrooms Armillaria borealis(?) emerging from a tree stump in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 9, 2013 ulitsa Professora Popova, 1/6, Saint Petersburg, Russia, 190000
Northern Honey mushrooms (Armillaria borealis(?)) emerging from a tree in Okhtinsky Park in Toksovo, 8 miles north from Saint Petersburg. Russia, September 13, 2013 Glavnaya, 107, Syargi, Leningrad Oblast, Russia, 188660
Northern Honey mushrooms (Armillaria borealis(?)) in south area of Monrepo (Mon Repos) Park. Vyborg, Russia, September 14, 2013 Malaya Vodyanaya ul., 17, Vyborg, Leningradskaya oblast', Russia, 188811
Small Northern Honey mushrooms (Armillaria borealis(?)) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013 ulitsa Zhaka Dyuklo, 67, Saint Petersburg, Russia, 190000
Northern Honey mushrooms (Armillaria borealis(?)) near Chornoe Lake north from Komarovo, 25 miles west from Saint Petersburg. Russia, September 16, 2013 Ozernaya ul., Russia, 197733
Northern Honey mushrooms (Armillaria borealis(?)) in Komarovo Cemetery, 25 miles west from Saint Petersburg. Russia, September 16, 2013 Ozernaya ul., Russia, 197733
Northern Honey mushrooms (Armillaria borealis(?)) on display on mushroom exhibition in Botanic Institute. Saint Petersburg, Russia, September 20, 2013
Northern Honey mushrooms (Armillaria borealis(?)) on a tree stump in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 21, 2015 nab. Reki Karpovki, Sankt-Peterburg, Russia
Northern Honey mushrooms (Armillaria borealis(?)) near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, September 23, 2015 Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Young Northern Honey mushrooms (Armillaria borealis(?)) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
Emerging young Northern Honey mushrooms (Armillaria borealis(?)) in Sosnovka Park. Saint Petersburg, Russia, August 25, 2016
Young honey mushrooms Armillaria borealis(?) in Sosnovka Park. Saint Petersburg, Russia, August 28, 2016 Unnamed Road, Sankt-Peterburg, Russia, 194223
Honey mushrooms Armillaria borealis(?) on a trunk of spruce tree. Oselki, south from Saint Petersburg, Russia, August 29, 2016 Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Young honey mushrooms Armillaria borealis(?) on a mossy log. Oselki, south from Saint Petersburg, Russia, August 29, 2016 Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Yellowish honey mushrooms Armillaria borealis(?). Oselki, south from Saint Petersburg, Russia, August 29, 2016 Unnamed Road, Oselki, Leningradskaya oblast', Russia, 188665
Honey mushrooms Armillaria borealis(?) on a log near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016 Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Yeast mold Dipodascus armillariae(?) or Geotrichum sp. growing on gills of honey mushrooms Armillaria borealis(?) on a tree near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016 Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Honey mushrooms Armillaria borealis(?) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 24, 2016 nab. Reki Karpovki, Sankt-Peterburg, Russia
Mature honey mushrooms Armillaria borealis(?) with spores spilled on caps between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016 Unnamed Road, Leningradskaya oblast', Russia
Honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016 Dubkovskoye sh., 42, Sestroretsk, g. Sankt-Peterburg, Russia, 197706
Honey mushrooms Armillaria borealis(?) in Gatchina Park. Gatchina, a suburb of Saint Petersburg, Russia, October 12, 2016 Krasnoarmeyskiy pr., 1А, Gatchina, Leningradskaya oblast', Russia, 188307
Honey mushrooms Armillaria borealis(?) on a stump on Marble Lane in Smolenskoe Cemetery of Vasilievsliy Island. Saint Petersburg, Russia, October 27, 2016 Kamskaya ul., 24, Sankt-Peterburg, Russia, 199178
Northern honey mushrooms (Armillaria borealis) on a stump near a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 8, 2017 Kronshtadtskoye Shosse, 47, Kronshtadt, Sankt-Peterburg, Russia, 197761
Young northern honey mushrooms (Armillaria borealis) in Sosnovka Park. Saint Petersburg, Russia, September 12, 2017 Unnamed Road, St Petersburg, Russia, 194223
Young northern honey mushrooms (Armillaria borealis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 12, 2017 Unnamed Road, St Petersburg, Russia, 194223
Young northern honey mushrooms (Armillaria borealis) in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017 Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Young northern honey mushrooms (Armillaria borealis) with slime mold Trichia decipiens on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017 Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Young northern honey mushrooms (Armillaria borealis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017 Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Immature northern honey mushrooms (Armillaria borealis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017 Ulitsa Zhaka Dyuklo, 67, St Petersburg, Russia, 194214
Young northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Krasnogo Molodtsa, Pavlovsk, Sankt-Peterburg, Russia, 196625
Young northern honey mushrooms (Armillaria borealis) on a mossy stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Staroshaleynaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196620
Immature northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Alleya Chornoy Shlyapy, Pavlovsk, Sankt-Peterburg, Russia
Cluster of young northern honey mushrooms (Armillaria borealis) on submerged wood in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Masses of young northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Immature northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Close up of young northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Groups of young northern honey mushrooms (Armillaria borealis) on a stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Immature northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Krugovaya Ulitsa, 23, Tyarlevo, Sankt-Peterburg, Russia, 196625
Immature northern honey mushrooms (Armillaria borealis) together with sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Krugovaya Ulitsa, 25, Tyarlevo, Sankt-Peterburg, Russia, 196625
Immature northern honey mushrooms (Armillaria borealis) together with sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in roadside bushes in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Krugovaya Ulitsa, 25, Tyarlevo, Sankt-Peterburg, Russia, 196625
Young northern honey mushrooms (Armillaria borealis) together with sheathed woodtuft mushrooms (Kuehneromyces mutabilis) on a stump in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Parkovaya Ulitsa, 5, Tyarlevo, Sankt-Peterburg, Russia, 196625
Tiny northern honey mushrooms (Armillaria borealis) in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017 Krasnogo Molodtsa, Pavlovsk, Sankt-Peterburg, Russia, 196625
Northern honey mushrooms (Armillaria borealis) on a mossy tree near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017 Zapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Masses of northern honey mushrooms (Armillaria borealis) covering a tree near Dibuny, north-west from Saint Petersburg. Russia, September 18, 2017 Zapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Northern honey mushrooms (Armillaria borealis) in Park of Polytechnic Institute. Saint Petersburg, Russia, September 19, 2017 Politekhnicheskaya Ulitsa, 29к2, St Petersburg, Russia, 194021
Northern honey mushrooms (Armillaria borealis) on a stump in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 21, 2017 Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Northern honey mushrooms (Armillaria borealis) together with brick tuft (Hypholoma lateritium) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 21, 2017 Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Northern honey mushrooms (Armillaria borealis) around a tree in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, September 21, 2017 Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Northern honey mushrooms (Armillaria borealis) with yeast mold Dipodascus armillariae(?) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 26, 2017 Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Yeast mold Dipodascus armillariae(?) or Geotrichum sp. growing on gills of northern honey mushrooms (Armillaria borealis) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 26, 2017 Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Yeast mold Dipodascus armillariae(?) on gills of northern honey mushrooms (Armillaria borealis) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 26, 2017 Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Northern honey mushrooms (Armillaria borealis) near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017 Zapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Immature honey mushrooms Armillaria borealis on a fallen birch near Lisiy Nos, west from Saint Petersburg. Russia, September 1, 2018 Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Northern honey mushrooms (Armillaria borealis) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, September 5, 2018 Unnamed Road, Leningradskaya oblast', Russia, 188664
Northern honey mushrooms (Armillaria borealis) at the base of a tree near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, September 5, 2018 Unnamed Road, Leningradskaya oblast', Russia, 188664
Mature northern honey mushrooms (Armillaria borealis) on a stump near Kavgolovskoe Lake in Rappolovo - Toksovo, north from Saint Petersburg. Russia, September 5, 2018 Токсовское городское поселение, Всеволожский район, Ленинградская область, Северо-Западный федеральный округ, Россия
Northern honey mushrooms (Armillaria borealis) on a fallen birch near Lisiy Nos, west from Saint Petersburg. Russia, September 6, 2018
Northern honey mushrooms (Armillaria borealis) growing on a fallen birch near Lisiy Nos, west from Saint Petersburg. Russia, September 6, 2018
Northern honey mushrooms (Armillaria borealis) covering a fallen birch near Lisiy Nos, west from Saint Petersburg. Russia, September 6, 2018
Northern honey mushrooms (Armillaria borealis) on a birch stump near Lisiy Nos, west from Saint Petersburg. Russia, September 6, 2018
Northern honey mushrooms (Armillaria borealis) on a mossy log near Lisiy Nos, west from Saint Petersburg. Russia, September 6, 2018
Northern honey mushrooms (Armillaria borealis) at the base of a birch in a coastal forest between Lisiy Nos and Olgino, west from Saint Petersburg. Russia, September 6, 2018 Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Comments
Search of mushroom species for given keywords "Armillaria borealis" was done through
catalogueoflife.org.