 Top view of a blackening brittlegill mushroom (Russula nigricans) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Cross section of a blackening brittlegill mushroom (Russula nigricans) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Blackening brittlegill mushrooms (Russula nigricans) near Lisiy Nos, south from Saint Petersburg. Russia, August 17, 2018
 Winecork brittlegill mushrooms (Russula adusta) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Greying brittlegill mushroom (Russula decolorans) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
 Underside of a grey brittlegill (Russula) mushroom in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Greying brittlegill mushroom (Russula decolorans) between Orekhovo and Lembolovo, 30 miles north from Saint Petersburg. Russia, August 19, 2004
 Tall brittlegill mushroom (Russula paludosa) between Orekhovo and Lembolovo, 30 miles north from Saint Petersburg. Russia, August 19, 2004
 Underside of blackening brittlegill mushroom (Russula eccentrica) in Lick Creek Park. College Station, Texas, July 1, 2020
 Underside of pink brittlegill (Russula) mushrooms in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Winecork brittlegill mushrooms (Russula adusta) in Orekhovo, 40 miles north from Saint Petersburg. Russia, August 18, 2017
 Bare teeth brittlegill mushrooms (Russula vesca) in Orekhovo, 40 miles north from Saint Petersburg. Russia, August 18, 2017
 Bare teeth brittlegill mushrooms (Russula vesca) between Orekhovo and Lembolovo, 40 miles north from Saint Petersburg. Russia, August 18, 2017
 Underside of a bleached brittlegill mushroom (Russula exalbicans) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
 Brown-red brittlegill mushroom (Russula, Russian name Syroezhka) growing in sand near Orekhovo, north from Saint Petersburg. Russia, July 27, 2016
 Underside of brittlegill mushrooms Russula adusta (Russula nigricans) on Racoon Run Trail in Lick Creek Park. College Station, Texas, October 28, 2021
 Underside of a neat brown webcap mushroom Cortinarius esculentus near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Underside of milk white brittlegill mushroom (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
 Greying brittlegill mushroom (Russula decolorans) together with Russula covered by fungus Hypomyces viridis in Dibuny, north-west from Saint Petersburg, Russia, August 9, 2016
 Underside of brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Grass-green brittlegill mushroom (Russula aeruginea, Russian name Syroezhka) in moss between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016
 Pink brittlegill (Russula) mushrooms in Petiayarvi, north from Saint Petersburg. Russia, August 3, 2024
 Underside of blackening brittlegill mushrooms (Russula) in Hensel Park. College Station, Texas, May 8, 2023
 Top view of a grey brittlegill (Russula) mushroom in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Winecork brittlegill mushrooms (Russula adusta) in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Blackened mature menthol brittlegill mushroom (Russula albonigra) in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Pink brittlegill (Russula) mushrooms with darkening gills in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Asterophora parasitica mushroom on a rotten cap of Russula mushroom near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
 Red brittlegill mushrooms (Russula, Russian name Syroezhka) near Orekhovo, north from Saint Petersburg. Russia, July 27, 2016
 Purple brittlegill mushrooms (Russula) near Orekhovo, 45 miles north from Saint Petersburg. Russia, September 9, 2017
 Bright red brittlegill (Russula) mushrooms near Orekhovo, 45 miles north from Saint Petersburg. Russia, September 9, 2017
 Brittlegill mushroom Russula paludosa near Dibuny, north-west from Saint Petersburg. Russia, August 20, 2017
 Red brittlegill (Russula sp.) mushroom west from Kannelyarvi, 40 miles north from Saint Petersburg. Russia, August 7, 2012
 Underside of winecork brittlegill mushrooms (Russula adusta) near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 Green brittlegill mushrooms (Russula aeruginea) near Orekhovo, 45 miles north from Saint Petersburg. Russia, September 9, 2017
 Pale violet brittlegill (Russula) mushroom near Dibuny, north-west from Saint Petersburg. Russia, August 28, 2017
 Fragile brittlegill mushroom (Russula fragilis) near Lembolovo, 40 miles north from Saint Petersburg. Russia, August 27, 2017
 Violet brittlegill (Russula sp.) mushroom west from Kannelyarvi, 40 miles north from Saint Petersburg. Russia, August 7, 2012
 Tall brittlegill mushroom (Russula paludosa(?)) in Dibuny, north-west from Saint Petersburg, Russia, August 9, 2016
 Pink brittlegill mushrooms (Russula, Russian name Syroezhka) between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016
 Grey brittlegill mushrooms (Russula, Russian name Syroezhka) on roadside near Orekhovo, north from Saint Petersburg. Russia, July 27, 2016
 Blackening brittlegill mushrooms Russula densifolia on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, August 1, 2020
 Red brittlegill (Russula sp.) mushroom near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, August 25, 2013
 Violet brittlegill mushrooms (Russula, Russian name Syroezhka) growing in sand near Orekhovo, north from Saint Petersburg. Russia, July 27, 2016
 Violet brittlegill mushrooms (Russula, Russian name Syroezhka) on roadside between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016
 Dissected blackening brittlegill mushrooms Russula densifolia on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, August 1, 2020
 Tall brittlegill mushroom (Russula paludosa) near Kavgolovo Lake south from Oselki, north from Saint Petersburg. Russia, August 6, 2012
 Common yellow brittlegill (Russula ochroleuca) mushroom near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, August 25, 2013
 Cap of blackening brittlegill mushroom (Russula eccentrica) in Lick Creek Park. College Station, Texas, July 1, 2020
 Pink brittlegill (Russula) mushrooms in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Gills of blackening brittlegill mushroom (Russula eccentrica) in Lick Creek Park. College Station, Texas, July 1, 2020
 Grey brittlegill (Russula) mushrooms in Dubki (The Oaks) Park in Sestroretsk, near Saint Petersburg. Russia, August 7, 2024
 Red brittlegill (Russula) mushrooms under spruce trees in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Cross section of blackening brittlegill mushroom (Russula eccentrica) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021
 Brittlegill mushrooms Russula adusta (Russula nigricans) on Racoon Run Trail in Lick Creek Park. College Station, Texas, October 28, 2021
 Pale brown, almost white fragile brittlegill (Russula) mushrooms in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Pink brittlegill (Russula) mushroom in moss on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
 Mushroom Arrhenia sphagnicola in sphagnum moss near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Blue tooth mushroom (Hydnellum caeruleum) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Brittlegill (Russula sp.) mushroom in Okhtinsky Park near Toksovo, suburb of Saint Petersburg. Russia, August 29, 2013
 Red brittlegill (Russula) mushrooms in a dense forest near a summer house at 9a 2nd Borovaya Street in Solnechnoe, west from Saint Petersburg. Russia, August 7, 2024
 Cross section of brittlegill mushrooms Russula adusta (Russula nigricans) on Racoon Run Trail in Lick Creek Park. College Station, Texas, October 28, 2021
 Small mealy tooth mushroom (Hydnellum ferrugineum) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Small pinkgill mushroom (Entoloma) in sphagnum moss near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Small Mycena mushroom and Mycetinis scorodonius under pines near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Fragile brittlegill mushroom (Russula fragilis) in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017
 Light brown brittlegill (Russula) mushrooms on an old sand dune overgrown by pine forest in Sestroretskoye Swamp near Saint Petersburg. Russia, August 11, 2024
 Gills of milk white brittlegill mushroom (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
 Milk white brittlegill mushroom (Russula delica(?)) in grass on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
 Side view of a blue tooth mushroom (Hydnellum caeruleum) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Side view of a mushroom Arrhenia sphagnicola in sphagnum moss near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Swamp brittlegill mushrooms (Russula paludosa) at Eco Trail Sestroretskoye Swamp near Saint Petersburg. Russia, August 11, 2024
 Brown brittlegill mushroom (Russula consobrina) in Okhtinsky Park near Toksovo, suburb of Saint Petersburg. Russia, August 29, 2013
 Cross section of milk white brittlegill mushroom (Russula delica(?)) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
 Brittlegill mushrooms Russula exalbicans near Dibuny, north-west from Saint Petersburg. Russia, August 28, 2018
 Upper view of a small pinkgill mushroom (Entoloma) in sphagnum moss near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
 Stinking brittlegill mushrooms (Russula foetens) on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024
 Cracked cap of a mature brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Top view of a pink brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Top view of a brown brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 The flirt brittlegill mushrooms (Russula vesca(?)) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 21, 2013
 Brown brittlegill mushrooms (Russula) west from Kannelyarvi, 40 miles north from Saint Petersburg. Russia, August 7, 2012
 Bare teeth brittlegill mushrooms (Russula vesca) near Kuzmolovo, north from Saint Petersburg. Russia, August 10, 2017
 Pink brittlegill mushrooms Russula paludosa(?) near Dibuny, north-west from Saint Petersburg. Russia, August 20, 2017
 Underside of a large white brittlegill mushroom Russula compacta on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, September 21, 2024
 Underside of partially dried brittlegill mushroom Russula compacta in Bastrop State Park. Bastrop, Texas, May 17, 2024
 Dark red brittlegill mushrooms (Russula) in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, August 1, 2017
 Violet brittlegill mushrooms (Russula) in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, August 1, 2017
 Brown brittlegill mushrooms (Russula) in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, August 1, 2017
 Dark red crab brittlegill mushrooms (Russula xerampelina) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 11, 2017
 Underside of a brittlegill (Russula) mushroom both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
 Red brittlegill (Russula) mushroom west from Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, September 15, 2017
 Red brittlegill (Russula sp.) mushroom in Okhtinsky Park in Toksovo, 8 miles north from Saint Petersburg. Russia, September 13, 2013
 Pale pink brittlegill mushrooms (Russula) near a road west from Kavgolovskoe Lake (Syariunlakhti), near Toksovo. North from Saint Petersburg, Russia, July 26, 2024
 Green-violet brittlegill mushrooms (Russula) near a road west from Kavgolovskoe Lake (Syariunlakhti), near Toksovo. North from Saint Petersburg, Russia, July 26, 2024
 Blackening brittlegill mushrooms (Russula eccentrica) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 5, 2021
 Blackening brittlegill mushrooms (Russula eccentrica) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 5, 2021
 Winecork brittlegill mushrooms (Russula adusta) in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, August 1, 2017
 Pink brittlegill (Russula sp.) mushrooms on mossy slope west from Kannelyarvi, 40 miles north from Saint Petersburg. Russia, August 7, 2012
|