 Powdery mildew of oak (Erysiphe alphitoides) on oak seedlings in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Whitish covering of oak leaves caused by powdery mildew of oak (Erysiphe alphitoides) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Grey brittlegill (Russula) mushrooms in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Top view of a grey brittlegill (Russula) mushroom in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Coprin de Romagnesi mushrooms (Coprinopsis romagnesiana) near a big oak in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Common earthball mushrooms (Scleroderma citrinum) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Oakbug milkcap mushroom (Lactarius quietus) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Underside of a grey brittlegill (Russula) mushroom in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Gills of oakbug milkcap mushroom (Lactarius quietus) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Underside of Coprin de Romagnesi mushrooms (Coprinopsis romagnesiana) near an oak in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Chicken of the woods mushrooms (Laetiporus sulphureus) on an oak stump(?) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Section of a common earthball mushroom (Scleroderma citrinum) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Section of an oakbug milkcap mushroom (Lactarius quietus) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Top view of oakbug milkcap mushroom (Lactarius quietus) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Mature common earthball mushrooms (Scleroderma citrinum) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Mature Chicken of the woods mushrooms (Laetiporus sulphureus) on a giant oak in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Close-up of section of a common earthball mushroom (Scleroderma citrinum) in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Leaves of bur clover (Medicago polymorpha) with white spots of powdery mildew fungus Erysiphe trifoliorum(?) in Lick Creek Park. College Station, Texas, April 18, 2022
 Details of round cleistothecia(?) of powdery mildew fungus Erysiphe trifoliorum(?) under microscope, collected from bur clover in Lick Creek Park. College Station, Texas, April 18, 2022
 Round cleistothecia(?) of powdery mildew fungus Erysiphe trifoliorum(?) under microscope at low magnification, collected from bur clover in Lick Creek Park. College Station, Texas, April 18, 2022
 Bur clover (Medicago polymorpha) with white spots of powdery mildew fungus Erysiphe trifoliorum(?) on pipeline right of way in Lick Creek Park. College Station, Texas, April 18, 2022
 Chasmothecia with ascus and asco spores(?) of powdery mildew fungus Erysiphe trifoliorum(?) under microscope at low magnification, collected from bur clover in Lick Creek Park. College Station, Texas, April 18, 2022
 Details of chasmothecia with ascus and asco spores(?) of powdery mildew fungus Erysiphe trifoliorum(?) under microscope, collected from bur clover in Lick Creek Park. College Station, Texas, April 18, 2022
 Ascus and asco spores(?) inside a round chasmothecia of powdery mildew fungus Erysiphe trifoliorum(?) under microscope, collected from bur clover in Lick Creek Park. College Station, Texas, April 18, 2022
 Chasmothecia with ascus and asco spores (cleistothecia)(?) of powdery mildew fungus Erysiphe trifoliorum(?) under microscope at very low magnification, collected from bur clover in Lick Creek Park. College Station, Texas, April 18, 2022
 Road in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Fly agaric (Amanita muscaria) mushroom in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Yellow mushrooms Hypholoma sp.(?) among dry leaves in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Elf caps mushrooms (Mycena inclinata) in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Grass with powdery mildew fungus Blumeria graminis (Erysiphe graminis) on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Young honey mushrooms Armillaria borealis(?) in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Sulphur Tuft mushrooms (Hypholoma fasciculare)(?) stump in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Sulphur Tuft mushrooms (Hypholoma fasciculare)(?) on a tree stump in Dubki (Oaks) Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Spores (conidia?) of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Chain of conidia of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores and conidia of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) in Melzer, collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores and conidia of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Various types of spores of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Conidia and chasmothecia(?) of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores and chasmothecia(?) of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores, conidia and chasmothecia(?) of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores of corn powdery mildew fungus Blumeria graminis (Erysiphe graminis) at low magnification, in lugol, collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Spores of powdery mildew (lawn and garden fungus) Blumeria graminis (Erysiphe graminis) collected from grass on a lawn of apartments on George Bush Drive. College Station, Texas, March 13, 2023
 Road in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Emerging oak leaves in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Main road in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Road near a beach in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Oak alley in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 An oak of Dubki Park in Sestroretsk, north-west from Saint Petersburg. Russia, June 26, 2003
 Young leaves on oak trees in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 An oak of Dubki Park in Sestroretsk, north-west from Saint Petersburg. Russia, June 26, 2003
 Main road near a beach in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Stitchwort (Stellaria) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Oak alley of Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Forest near main road in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Oak alley towards the gulf in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 Fern leaf in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Flowers of stitchwort (Stellaria) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Elk antlers shed under an oak in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Melanoleuca strictipes mushrooms in Dubki Park. Sestroretsk, west from Saint Petersburg, Russia, May 31, 2014
 Icy Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Shells of snails on a beach in Dubki Park. Sestroretsk, west from Saint Petersburg, Russia, May 31, 2014
 Melanoleuca(?) mushrooms near a beach in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
 Blooming bog violet (Viola) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Clouds over Sestroretsk from a spit in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Flower of dandelion (Taraxacum officinale) in Dubki Park. Sestroretsk, west from Saint Petersburg, Russia, May 31, 2014
 Blooming anemones (Anemone nemorosa) in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 19, 2011
 White flowers of stitchwort (Stellaria) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Deceiver mushrooms (Laccaria laccata)(?) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
 Blooming spring violets near main road in Dubki Park in Sestroretsk, near Saint Petersburg. Russia, May 12, 2016
 Violet (viola) in a roadside ditch in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 Flower buds of lungwort (Pulmonaria)(?) in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 Ice crystals in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Opening flowers of lungwort (Pulmonaria)(?) in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 Lesser celandine (Ficaria verna) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, May 20, 2019
 Gulf of Finland and Sestroretsk from a spit in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Dark green brittlegill (Russula) mushroom in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
 Common earthball mushrooms (Scleroderma citrinum) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
 Glittering ice crystals in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016
 Melting ice field in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Elongated ice crystals in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Broken ice crystals in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Melting ice crystals in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Accumulation of melting ice in Gulf of Finland near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Melting ice crystals in Gulf of Finland near near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Rusty bolete mushroom (Boletus ferrugineus)(?) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
 Glistening inkcap mushrooms (Coprinellus micaceus) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
 Small Hypholoma mushrooms in Dubki Park in Sestroretsk, north-west from Saint Petersburg. Russia, July 30, 2016
 Hawthorn twiglet mushrooms (Tubaria dispersa) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016
 Wood sorrel (Oxalis acetosella, Russian name Kislitsa) in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 Lesser celandine (Ficaria verna, Russian name Chistyak) in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 19, 2011
 Accumulation of melting ice with sand in Gulf of Finland near Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, April 11, 2017
 Lesser celandine (Ficaria verna, Russian name Chistyak) in Dubki Park. Sestroretsk, a suburb of Saint Petersburg, Russia, May 20, 2015
 Emerging honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Golden scalycap mushrooms (Pholiota aurivella) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016
 Cranberrybush (Viburnum opulus, Russian name Kalina) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, September 5, 2013
 Dissected common earthball mushrooms (Scleroderma citrinum) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, September 5, 2017
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