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Broken mature beefsteak fungus (Fistulina hepatica) on a huge old oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Pores of mature beefsteak fungus (Fistulina hepatica) from a huge old oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Fibrous, rusty-brown section of mature beefsteak fungus (Fistulina hepatica) from a huge old oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Beefsteak mushrooms (Fistulina hepatica) growing a huge old oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Pore Structure of mature beefsteak fungus (Fistulina hepatica) from a huge old oak in Dubki Park. In the close-up of the underside, one can see that the tubes are separate from one another (like packed straws) rather than fused into a solid sponge. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Spores (in KOH, spore print orange) of spectacular rustgill mushrooms (Gymnopilus junonius) collected earlier 10/9/2025 in Dubki Park, Sestroretsk near Saint Petersburg, Russia, October 19, 2025

Spores (spore print white) of yellowleg bonnet mushrooms (Mycena epipterygia) collected earlier 10/3/2025 in Tarkhovka Park near Sestroretsk, west from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print brown) of Conocybe(?) mushrooms collected earlier 10/3/2025 on black soil, under spruce trees in Tarkhovka Park near Sestroretsk, west from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print light brown) of conifer shield mushrooms (Pluteus pouzarianus) collected earlier 10/3/2025 on a forest road under spruce in Tarkhovka Park near Sestroretsk, west from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print light brown) of Lion shield mushrooms (Pluteus leoninus) collected earlier 10/3/2025 on wood chips of spruce in Tarkhovka Park near Sestroretsk, west from Saint Petersburg, Russia, October 19, 2025

Spores of coral fungus Lentaria byssiseda collected earlier 10/13/2025 from a tall oak tree in Sergievka Park, Old Peterhof, west from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, with x100 objective) of Ascomycete fungus Phaeohelotium monticola(?) collected earlier 10/7/2025 on wood near Lisiy Nos, near Saint Petersburg, Russia, October 19, 2025

Spores (in lugol, with x40 objective) of Ascomycete fungus Phaeohelotium monticola(?) collected earlier 10/7/2025 on wood near Lisiy Nos, near Saint Petersburg, Russia, October 19, 2025

Spores (in lugol, with x100 objective) of Ascomycete fungus Phaeohelotium monticola(?) collected earlier 10/7/2025 on wood near Lisiy Nos, near Saint Petersburg, Russia, October 19, 2025

Spores of white Calocybe-like mushrooms collected earlier 10/9/2025 in Sosnovka Park. Saint Petersburg, Russia, October 19, 2025

Spores (in KOH) of mushrooms Psilocybe fuscofulva(?) collected earlier 9/29/2025 near Kavgolovskoe Lake south from Oselki near Saint Petersburg, Russia, October 19, 2025

Spores of grey tooth mushrooms (Phellodon melaleucus) collected earlier 9/25/2025 near Dibuny, north-west from Saint Petersburg, Russia, October 19, 2025

Spores of Calocybe-like mushrooms collected earlier 10/8/2025 under silvery fir trees behind Lenin s monument in Botanical Garden, Saint Petersburg, Russia, October 19, 2025

Spores of Ascomycete mushrooms Pulvinula convexella collected earlier 10/1/2025 on a bonfire site near a lake in Kannelyarvi, north from Saint Petersburg, Russia, October 19, 2025

Spores of roothole rosette mushrooms (Stereopsis vitellina) collected earlier 10/5/2025 in a burrow near a road under pines in Petyayarvi, north from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print black) of brittlestem mushrooms (Psathyrella corrugis) collected earlier 10/6/2025 on a forest trail in Pavlovsk, a suburb of Saint Petersburg, Russia, October 19, 2025

Spores (in KOH) of Boletinus/Suillus cavipes mushrooms collected earlier 9/30/2025 near Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, October 19, 2025

Spores of mushrooms Multiclavula corynoides collected earlier 10/5/2025 in a shallow depression covered by sand, near Petyayarvi train stop, north from Saint Petersburg, Russia, October 19, 2025

Spores (spore print white) of Goblet mushrooms (Pseudoclitocybe cyathiformis) collected earlier 10/12/2025 up from 67 km train stop near Orekhovo, north from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print dark brown) of common stump brittlestem mushrooms (Psathyrella piluliformis)(?) collected earlier 10/5/2025 on roadside in Petyayarvi, north from Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print light brown) of Velvet Shank mushrooms (Flammulina velutipes) collected earlier 10/2/2025 near Kavgolovskoe Lake south from Oselki near Saint Petersburg, Russia, October 19, 2025

Spores (in KOH, spore print light brown) of of mushrooms Boletinus asiaticus collected earlier 9/30/2025 in Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, October 19, 2025

Giant conifer parchment fungus (Phlebiopsis gigantea) on a broken pine in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Brick tuft mushrooms (Hypholoma lateritium) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Alder bracket mushrooms (Xanthoporia radiata) on a tree in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Polypore mushrooms Alder bracket (Xanthoporia radiata) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Clustered bonnet mushrooms (Mycena inclinata) on an oak stump in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Underside of polypore mushrooms Alder bracket (Xanthoporia radiata) in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Spectacular rustgill mushrooms (Gymnopilus junonius) at the base of a large oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Caps of polypore mushrooms Alder bracket (Xanthoporia radiata) on a tree in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Underside of spectacular rustgill mushrooms (Gymnopilus junonius) at the base of a large oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Section of spectacular rustgill mushrooms (Gymnopilus junonius) at the base of a large oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Side view of clustered bonnet mushrooms (Mycena inclinata) on an oak stump in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Cypress-leaved Plait-moss (Hypnum cupressiforme) on bark of a large oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Close-up of Cypress-leaved Plait-moss (Hypnum cupressiforme) with curved (falcate) and inclined capsules on a large oak in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Greenish-yellow to rusty brown underside of Dyer s Mazegill mushrooms (Phaeolus schweinitzii) from a large pine in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Irregular, angular, and labyrinthine ("maze-like") pores of Dyer s Mazegill mushrooms (Phaeolus schweinitzii) from a large pine in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Large, overlapping brackets of Dyer s Mazegill mushrooms (Phaeolus schweinitzii) one meter above ground on a large pine in Dubki Park. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Snowy waxcap mushrooms (Cuphophyllus virgineus) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Golden waxcap mushrooms (Hygrocybe chlorophana) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Winecork brittlegill mushrooms (Russula adusta)(?) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Yellowleg bonnet mushrooms (Mycena epipterygia) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Terracotta hedgehog mushrooms (Hydnum rufescens) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Veiled poisonpie mushrooms (Hebeloma mesophaeum) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

View of the Slavyanka River showing the "picturesque meadow" aesthetic, distinct from the wooded ravine views seen earlier. Pavlovsk, a suburb of Saint Petersburg, Russia, October 6, 2025

Underside of anise mazegill mushroom (Gloeophyllum odoratum) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Lion shield mushrooms (Pluteus leoninus) on wood chips in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Bitter bracket mushroom (Postia stiptica) on a spruce stump in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Anise mazegill mushroom (Gloeophyllum odoratum) on a spruce stump in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Powderpuff bracket mushrooms (Postia ptychogaster) at the base of a tree in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Slime mold Trichia decipiens in its immature (developing) stage in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Gills of Conocybe(?) mushrooms among grass on black soil, under spruce trees in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Small dark brown webcap (Cortinarius) mushrooms together with Cliticybe(?) on moss in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Gulf of Finland coastline, with a zone of Common Reed (Phragmites australis) in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Conifer shield mushrooms (Pluteus pouzarianus) on a forest road under spruce in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Underside of Lion shield mushrooms (Pluteus leoninus) on wood chips in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Underside of Conocybe(?) mushrooms among grass on black soil, under spruce trees in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Conocybe(?) mushrooms (Spore size 7.4 - 8.1 x 4.4 - 4.6) among grass on black soil, under spruce trees in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Terracotta hedgehog mushrooms (Hydnum rufescens) together with blusher (Amanita rubescens) and Clitocybe in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Underside of conifer shield mushrooms (Pluteus pouzarianus) on a forest road under spruce in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Close-up of small dark brown webcap (Cortinarius) mushrooms and Cliticybe(?) on moss in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Small Lamsky Bridge (Maly Lamskoy Bridge), built in the early 20th century (around 1900) to replace an earlier wooden crossing. Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Hen-of-the-wood fungus (polypore mushroom Grifola frondosa) near an old oak in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016

Cap of Conocybe(?) mushrooms showing "fried egg" hygrophanous fade--darker brown center and paler margin in Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Large hen-of-the-wood fungus (polypore mushroom Grifola frondosa) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016

Hen-of-the-wood fungus (polypore mushroom Grifola frondosa) on a root of oak tree in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016

Spores of mushrooms Acanthophysium oakesii (Aleurodiscus oakesii) from bark of a recently dried oak, collected 10/28/2025 near Pole Creek in Sam Houston National Forest north from Montgomery. Texas, November 4, 2025

Hen-of-the-wood fungus (polypore mushroom Grifola frondosa) near a base of a large oak tree in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016

Oak maze-gill mushroom (Daedalea quercina) with a violet patch-forming fungus Tulasnella violea in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016

Spores of pale brown waxy corticioid fungus Scytinostroma hemidichophyticum(?) on underside of a fallen birch collected earlier 7/30/2024 in Sosnovka Park, in St. Petersburg, Russia, August 22, 2024

Coral fungus Lentaria byssiseda on bark of a tall oak. Sergievka Park, Old Peterhof, west from Saint Petersburg, Russia, October 13, 2025

Coral fungus Lentaria byssiseda on a tall oak tree. Sergievka Park, Old Peterhof, west from Saint Petersburg, Russia, October 13, 2025

Decurrent gills of the Goblet mushrooms (Pseudoclitocybe cyathiformis) collected near Orekhovo, north from Saint Petersburg. Russia, October 12, 2025

Texture of corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Growth of corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Close-up of corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Slime mold Trichia decipiens in its immature (developing) stage. The vibrant bright orange to salmon-pink "beads" visible are the developing fruiting bodies (sporangia). Tarkhovka Park near Sestroretsk, west from Saint Petersburg. Russia, October 3, 2025

Soft edge of corticioid fungus Plicatura nivea on a log Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Round patch of corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Close-up of soft edge of corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Large area covered by corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Spores of conifer woodtuft mushrooms (Kuehneromyces lignicola) collected earlier 7/17/2024 in Sosnovka Park, Saint Petersburg, Russia, August 22, 2024

Spores (in KOH) of fibrecap mushrooms Inocybe curvipes(?) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024

Expansive view looking north-northwest from the southern end of the Sestroretsk coastline towards the Sestroretsk Resort (Kurort) and, further in the distance, the settlement of Solnechnoe (Sunny). The coastline curves gently inward. This specific geography near Sestroretsk causes the eastward littoral drift (sand movement) to weaken, resulting in a very wide, accretional beach (up to 140 meters wide) known for its fine sand and extensive dunes. The foreground shows a sandy spit or sandbar created by the outflow of water. The shallow water here creates the wide, calm pools seen in the foreground, which are popular with birds. Sestroretsk near Saint Petersburg, Russia, October 9, 2025

Texture of large area covered by corticioid fungus Plicatura nivea on a log in Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025

Spores (in KOH) of a fibrecap (Inocybe) mushroom collected earlier 8/2/2024 (photo 3586-06) in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024

Spores of a shield dapperling mushroom (Lepiota clypeolaria) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024

Spores of royal fly agaric mushrooms (Amanita regalis) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024

Spores of rooting bonnet mushroom (Mycena megaspora)(?) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024

Presence of a dead gull on a beach in the Gulf of Finland near Solnechnoe, that is most likely linked to the ongoing highly pathogenic avian influenza (HPAI) outbreak, specifically the H5N1 strain, which has devastated wild bird populations in the Baltic region throughout 2023-2025. Saint Petersburg, Russia, October 9, 2025

Honey mushrooms Armillaria borealis(?) in Dubki Park in Sestroretsk, west from Saint Petersburg. Russia, October 2, 2016

Deeply funnel-shaped dark brown caps of the Goblet mushrooms (Pseudoclitocybe cyathiformis) collected near Orekhovo, north from Saint Petersburg. Russia, October 12, 2025

Spores of a false saffron milkcap mushroom (Lactarius fennoscandicus) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024

Spores of Psilocybe-like gilled mushrooms in moss under spruce trees collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024