 Crust of silver leaf fungus (Chondrostereum purpureum mushrooms) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Silver leaf fungus (Chondrostereum purpureum mushrooms) in Sosnovka Park. Saint Petersburg, Russia, March 13, 2017
 Silver leaf fungus (Chondrostereum purpureum mushrooms) near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019
 Silverleaf fungus (Chondrostereum purpureum)(?) in Krestovsky Island. Saint Petersburg, Russia, October 7, 2017
 Silverleaf fungus (Chondrostereum purpureum) near Lembolovo, 40 miles north from Saint Petersburg. Russia, September 9, 2017
 Silverleaf fungus (Chondrostereum purpureum)(?) on a tree base in Krestovsky Island. Saint Petersburg, Russia, October 7, 2017
 Bleeding Broadleaf Crust fungus (Stereum rugosum mushrooms) on a tree in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Golden jelly fungus (Tremella mesenterica) parasitizing on rosy crust mushrooms (Peniophora incarnata) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Tinder conk mushroom (polypore fungus Fomes fomentarius) on a dead birch in Udelny Park. Saint Petersburg, Russia, February 12, 2017
 Rosy crust mushrooms (Peniophora incarnata) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Mossy maze polypore mushrooms (Cerrena unicolor) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Turkey tail mushrooms (Trametes versicolor or may be T. ochracea) in Udelny Park. Saint Petersburg, Russia, February 12, 2017
 Gills of mossy maze polypore mushrooms (Cerrena unicolor) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Mossy maple polypore mushrooms (Oxyporus populinus) on a tree in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Green moss on polypore mushrooms Oxyporus populinus on a tree in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Rosy crust mushrooms (Peniophora incarnata) on a small dry tree with dark bark in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Saprobic fungus Sarcoscypha austriaca in Udelny Park. Saint Petersburg, Russia, March 22, 2017
 Split porecrust mushroom (Schizopora paradoxa)(?) on an oak in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Split porecrust mushroom (Schizopora paradoxa)(?) on oak bark taken from Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Split porecrust mushroom (Schizopora paradoxa)(?) on bark of an oak in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Texture of split porecrust mushroom (Schizopora paradoxa)(?) on an oak in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Close up of split porecrust mushroom (Schizopora paradoxa)(?) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Pores of red-belted bracket (polypore mushroom Fomitopsis pinicola) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Large red-belted bracket (polypore mushroom Fomitopsis pinicola) in Udelny Park. Saint Petersburg, Russia, February 28, 2017
 Pores of split porecrust mushroom (Schizopora paradoxa)(?) on oak bark taken from Udelny Park. Saint Petersburg, Russia, February 28, 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
 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
 Cluster of catkin cup (Ciboria amentacea) mushrooms 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
 Stellaria flowers in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Bittercress (Cardamine) in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Pair of Stellaria flowers in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 White Stellaria flowers in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Back lit Stellaria flower in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Back lit Stellaria flowers in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Stellaria flower with ferns in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Alley in Udelny Park (former Celiuskintsev) in mist. Saint Petersburg, Russia, March 10, 2017
 Alder alley in Udelny Park (former Celiuskintsev). Saint Petersburg, Russia, March 10, 2017
 Small Stellaria flowers in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Hunter s House Restaurant in Udelny Park (former Celiuskintsev). Saint Petersburg, Russia, March 10, 2017
 Fine petals of Stellaria flower in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Birch alley in Udelny Park (former Celiuskintsev) in mist. Saint Petersburg, Russia, March 10, 2017
 Light snow on an alley in Udelny Park (former Celiuskintsev). Saint Petersburg, Russia, March 10, 2017
 Flowers of common dandelion (Taraxacum officinale) in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Tar rot fungus (Rhytisma acerinum) on a maple leaf taken from Sosnovka Park. Saint Petersburg, Russia, March 23, 2017
 Arctic starflower (Trientalis europaea, Russian name Sedmichnik) in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Water avens (Geum rivale, Russian name Gravilat) in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Common dandelion (Taraxacum officinale, Russian name Oduvanchik) in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Back lit flower of Water avens (Geum rivale, Russian name Gravilat) in Udelny Park. Saint Petersburg, Russia, June 8, 2017
 Willow bracket fungus (Phellinus igniarius mushrooms) near Kamenka River in Yuntolovsky Park. Saint Petersburg, Russia, February 23, 2017
 Bleeding Broadleaf Crust fungus (Stereum rugosum mushrooms) on a tree in Sosnovka Park. Saint Petersburg, Russia, February 3, 2017
 Willow bracket fungus (Phellinus igniarius mushrooms) on a birch tree in Yuntolovsky Park. Saint Petersburg, Russia, February 23, 2017
 Cabbage leaf Helvella mushrooms (Helvella acetabulum) with a parasitic fungus Hypomyces cervinus (Hypomyces cervinigenus) near Dibuny, west from Saint Petersburg. Russia, June 27, 2017
 Leaf parachute mushrooms (Marasmius epiphyllus) on a maple leaf taken from Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Texture of rust fungus Chrysomyxa pyrolae on a leaf of shinleaf taken from old railroad path in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017
 Rust fungus Chrysomyxa pyrolae underside of a leaf of shinleaf taken from old railroad path in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017
 Rust fungus Chrysomyxa pyrolae on lower surface of a leaf of shinleaf near Dibuny, north-west from Saint Petersburg, Russia, May 29, 2017
 Leaf parachute mushrooms (Marasmius epiphyllus) on a rotten leaf of birch taken from Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Fleshy gall on a cowberry leaf caused by the fungus Exobasidium vaccinii taken from Posiolok near Vyritsa, south from Saint Petersburg, Russia, July 9, 2017
 Rust fungus Chrysomyxa pyrolae on a lower leaf surface of shinleaf taken from old railroad path in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017
 Details of a fern leaf in a greenhouse in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
 Back lit Bauhinia leaf in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
 Porodaedalea pini (Phellinus pini) bracket fungus (polypore mushrooms) on a pine tree in Sosnovka Park. Saint Petersburg, Russia, February 27, 2017
 Willow bracket fungus (Phellinus igniarius mushrooms) near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017
 Oak Curtain Crust fungus (Hymenochaete rubiginosa mushrooms) near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017
 Fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Blue butterfly bush flowers (Clerodendrum) in greenhouses of Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 23, 2017
 Spreading fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Young willow bracket fungus (Phellinus igniarius mushrooms) near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017
 Willow bracket fungus (Phellinus igniarius mushrooms) on a birch near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Crust of fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Rust fungus Chrysomyxa pyrolae on a leaf of shinleaf (Round-leaved Wintergreen, Pyrola rotundifolia, Russian name Grushanka) in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017
 Udelny Park in northern Saint Petersburg. Russia, January 31, 2000
 Ceramic parchment fungus (Xylobolus frustulatus mushrooms) on a branch of a rotten oak near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Texture of crust of fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Tiny ceramic parchment fungus (Xylobolus frustulatus mushrooms) on a log of an oak tree near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017
 Thin crust of fungus (mushrooms) Phellinus laevigatus on a birch tree near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Crust of a polypore mushroom Phellinopsis conchata(?) on a lilac (Syringa) bush in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 21, 2017
 Close up of a polypore mushroom Phellinopsis conchata(?) on a lilac (Syringa) bush in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, February 21, 2017
 A lane in Udelny Park in northern Saint Petersburg. Russia, January 31, 2000
 Shoots of silver wormwood (Artemisia ludoviciana) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, June 9, 2017
 Fir-oak-fern rust (Hyalopsora aspidiotus) fungus on a leaf of northern oak fern Gymnocarpium dryopteris near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
 Small mushrooms Phaeohelotium epiphyllum (Hymenoscyphus epiphyllus) on a rotten leaf near Kuzmolovo, north from Saint Petersburg. Russia, September 24, 2017
 Wrinkled crust fungus (Phlebia radiata mushroom) on a mountain ash tree in Sosnovka Park. Saint Petersburg, Russia, February 14, 2017
 Leaf parachute (Marasmius epiphyllus) mushrooms in an oak grove near Razliv Lake, in Sestroretsk area west from Saint Petersburg. Russia, October 2, 2017
 Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) on a willow tree in Sosnovka Park. Saint Petersburg, Russia, February 22, 2017
 Texture of wrinkled crust fungus (Phlebia radiata mushroom) on a mountain ash tree in Sosnovka Park. Saint Petersburg, Russia, February 17, 2017
 Spreading Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) on a willow tree in Sosnovka Park. Saint Petersburg, Russia, February 17, 2017
 Texture of Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) on a willow tree in Sosnovka Park. Saint Petersburg, Russia, February 17, 2017
 Back lit leaf of mountain ash (Sorbus aucuparia, Russian name Ryabina) in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017
 Young leaf of mountain ash (Sorbus aucuparia, Russian name Ryabina) in Sosnovka Park. Saint Petersburg, Russia, May 20, 2017
 Underside of a leaf with coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019
 Small spider fallen on snow from a bush near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Brown crust of Fomitiporia punctata corticioid fungus (Phellinus punctatus mushroom) on a willow tree in Sosnovka Park. Saint Petersburg, Russia, February 22, 2017
 Silver-leaf nightshade (Solanum elaeagnifolium) in Lick Creek Park. College Station, Texas, June 21, 2018
 Red velvety patches on a birch leaf (velvet erineum galls) in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Red velvety patches on a birch leaf caused by the eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
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