 Hazel catkins and small female flowers from Sosnovka Park. Saint Petersburg, Russia, March 22, 2017
 Hazel bracket fungus (Skeletocutis nivea)(?) on a dry mountain ash tree in Sosnovka Park. Saint Petersburg, Russia, August 14, 2017
 White poroid mushrooms of hazel bracket (Skeletocutis nivea)(?) on a dry mountain ash tree in Sosnovka Park. Saint Petersburg, Russia, August 14, 2017
 Catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Cluster of catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Group of catkin cup (Ciboria amentacea) mushrooms under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Catkin cup (Ciboria amentacea) mushrooms growing under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Catkin cup (Ciboria amentacea) mushrooms on rotten leaves under alder trees in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Catkin cup (Ciboria amentacea) mushrooms taken from Morskaya, west from Saint Petersburg. Russia, March 16, 2017
 Catkin cup (Ciboria amentacea) mushroom under alder in Lavriki, north from Saint Petersburg. Russia, March 14, 2017
 Catkin cup (Ciboria amentacea) mushrooms on alder catkins near Morskaya, west from Saint Petersburg. Russia, March 16, 2017
 Catkin cup (Ciboria amentacea) mushrooms under alder bushes near Morskaya, west from Saint Petersburg. Russia, March 16, 2017
 Catkin cup (Ciboria amentacea) mushrooms on rotting alder catkins taken from Lavriki, north from Saint Petersburg. Russia, March 14, 2017
 Catkin cup (Ciboria amentacea) mushroom on rotting leaves under alder in Lavriki, north from Saint Petersburg. Russia, March 14, 2017
 Catkin cup (Ciboria amentacea) mushrooms on a stump in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, March 31, 2017
 Willow catkin in Pesochny, north-west from Saint Petersburg. Russia, May 5, 2017
 Beaked hazel (Corylus cornuta) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 21, 2017
 Catkin cup (Ciboria amentacea) mushrooms on roadside near Kavgolovskoe Lake. North from Saint Petersburg, Russia, May 3, 2017
 Catkin cup (Ciboria amentacea) mushrooms taken from roadside near Kavgolovskoe Lake. North from Saint Petersburg, Russia, May 3, 2017
 Blooming hazelnut from Sosnovka Park. Saint Petersburg, Russia, March 22, 2017
 Catkins of hazelnut taken from Sosnovka Park. Saint Petersburg, Russia, March 22, 2017
 Pine alley with snow in Sosnovka Park. Saint Petersburg, Russia, March 28, 2017
 Slime mold Fuligo leviderma on a log in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Corticioid fungus on birch tree in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Slime mold Fuligo leviderma on a birch in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Rosy crust mushrooms (Peniophora incarnata) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Hairy bracket mushrooms (Trametes hirsuta) in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Slime mold Oligonema schweinitzii taken from a stump in Sosnovka Park. Saint Petersburg, Russia, March 25, 2017
 Orange oyster mushrooms (Phyllotopsis nidulans) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Green paint on a cut branch of mountain ash tree in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Tar rot fungus (Rhytisma acerinum) on a maple leaf taken from Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Golden jelly fungus (Tremella mesenterica)(?) in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Catkin cup mushrooms (Ciboria batschiana) on rotten acorns in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
 Catkin cup fungus (Ciboria batschiana) on rotten acorns in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
 Tar rot fungus (Rhytisma acerinum) on fallen maple leaves in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Tar rot fungus (Rhytisma acerinum) on last year maple leaves in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Multicolored peat (sphagnum) moss in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Reddish peat (sphagnum) moss in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Fluted bird s nest mushrooms (Cyathus striatus) taken from Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 White rot fungus Phlebiopsis gigantea(?) on pine tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Silver leaf fungus (Chondrostereum purpureum mushrooms) in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Yellow mushroom Ditiola peziziformis(?) on a pine tree in Sosnovka Park. Saint Petersburg, Russia, March 15, 2017
 Witches butter jelly fungus Exidia nigricans in Sosnovka Park. Saint Petersburg, Russia, March 15, 2017
 Close up of catkin cup mushrooms (Ciboria batschiana) on rotten acorns in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
 Catkin cup mushrooms (Ciboria batschiana) growing on rotten acorns in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
 Purple toothed polypore mushrooms (Trichaptum biforme) on a birch log in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Ochre spreading tooth mushroom (Steccherinum ochraceum) on willow in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Fir clubmoss (Huperzia selago, Russian name Baranets) in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Birch polypore mushroom Fomitopsis betulina (Piptoporus betulinus) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Pores of Red-Belt Conk mushroom ( Fomitopsis pinicola) from a birch in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Masses of purple toothed polypore mushrooms (Trichaptum biforme) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Tinder conk mushroom (polypore fungus Fomes fomentarius) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Red-Belt Conk (polypore mushroom Fomitopsis pinicola) on a birch in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Tinder conk mushroom (polypore fungus Fomes fomentarius) on a birch in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Old jelly rot fungus (Phlebia tremellosa, Merulius tremellosus) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) on willow in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Ochre cushion fungus (Trichoderma pulvinatum) on a birch polypore mushroom in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Big jelly rot fungus (Phlebia tremellosa, Merulius tremellosus) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Fluted bird s nest mushrooms (Cyathus striatus) on the edge of a stump in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Texture of crust fungus Fomitiporia punctata (Phellinus punctatus mushroom) in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Ochre spreading tooth mushroom (Steccherinum ochraceum) on a broken tree in Sosnovka Park. Saint Petersburg, Russia, March 15, 2017
 Small winter polypore mushrooms Lentinus brumalis(?) taken from swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Jelly rot fungus (Phlebia tremellosa, Merulius tremellosus) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Fluted bird s nest mushroom (Cyathus striatus) on a mossy stump in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Texture of Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Hazel woodwart fungus (Hypoxylon fuscum) on a dry alder in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
 Prostrate form of purple toothed polypore mushrooms (Trichaptum biforme) on a birch log in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Upper view of purple toothed polypore mushrooms (Trichaptum biforme) on a birch log in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Brown witch s butter mushroom (jelly fungus, Exidia saccharina) on a pine in Sosnovka Park. Saint Petersburg, Russia, March 15, 2017
 Caps of jelly rot fungus (Phlebia tremellosa, Merulius tremellosus) on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Corticioid mushroom Trechispora mollusca on the lower surface of true conk fungus in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Jelly rot fungus (Phlebia tremellosa, Merulius tremellosus) with snow on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Birch polypore mushroom with a mold like ochre cushion fungus (Trichoderma pulvinatum) in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Hazel woodwart fungus (Hypoxylon fuscum) on bark of a dry alder in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
 Drying brown witch s butter mushroom (jelly fungus, Exidia saccharina) on a pine in Sosnovka Park. Saint Petersburg, Russia, March 15, 2017
 Small winter polypore mushrooms Lentinus brumalis(?) growing on peat in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Prostrate form of purple toothed polypore fungus (Trichaptum biforme) covering a birch log in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Prostrate form of purple toothed polypore fungus (Trichaptum biforme) on a fallen birch in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) with insect eggs on willow in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Fungus (mushroom) Cylindrobasidium evolvens growing on fallen birch leaves taken from peat area in Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Old Xanthoporia radiata (Mensularia radiata) mushrooms on a tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Fungus (mushroom) Cylindrobasidium evolvens growing on fallen birch leaves on peat in swampy area of Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Toothed crust fungus (Xylodon radula, Basidioradulum radula)(?) in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Toothed crust fungus (Xylodon radula, Basidioradulum radula)(?) in Sosnovka Park. Saint Petersburg, Russia, March 20, 2017
 Rotten blackened Xanthoporia radiata (Mensularia radiata) mushrooms on a tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Dried toothed crust fungus (Xylodon radula, Basidioradulum radula)(?) on a tree in Sosnovka Park. Saint Petersburg, Russia, March 15, 2017
 Sidera lenis (Skeletocutis lenis)(?) poroid fungus on a broken pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Corticioid mushroom Amyloporia sinuosa (Antrodia sinuosa) on a fallen pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Decaying basidiome of jelly rot (Phlebia tremellosa, Merulius tremellosus) with a saprobic fungus Botryobasidium subcoronatum on a birch tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Resupinate basidiocarps of mushroom Amyloporia sinuosa (Antrodia sinuosa) on a fallen pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Texture of corticioid mushroom Amyloporia sinuosa (Antrodia sinuosa) on a fallen pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Porodaedalea pini (Phellinus pini) bracket fungus (polypore mushrooms) on a pine tree in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Pattern of a corticioid mushroom Amyloporia sinuosa (Antrodia sinuosa) on a fallen pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Spreading poroid fungus Sidera lenis (Skeletocutis lenis)(?) on a broken pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Sidera lenis (Skeletocutis lenis)(?) poroid fungus on rotten wood of a pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 Irregular pores of corticioid mushroom Amyloporia sinuosa (Antrodia sinuosa) on a fallen pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
 White pores of poroid fungus Sidera lenis (Skeletocutis lenis)(?) on a broken pine tree in Sosnovka Park. Saint Petersburg, Russia, March 27, 2017
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