 Bitter bolete mushroom (Tylopilus felleus) in Dibuny, near Saint Petersburg. Russia, August 20, 2017
 Young bitter bolete mushrooms (Tylopilus felleus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 5, 2017
 Small bitter bolete mushrooms (Tylopilus felleus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 5, 2017
 Bitter bolete mushrooms (Tylopilus felleus) in Dibuny, north-west from Saint Petersburg, Russia, August 9, 2016
 Young bitter bolete mushrooms (Tylopilus felleus) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
 Small bitter bolete mushrooms (Tylopilus felleus) in Dibuny, north-west from Saint Petersburg, Russia, August 9, 2016
 Bitter bolete mushroom (Tylopilus felleus) in a spruce forest on west side of Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, August 25, 2017
 Young bitter bolete mushroom (Tylopilus felleus) near Lisiy Nos, west from Saint Petersburg. Russia, July 27, 2017
 Bitter bolete mushrooms (Tylopilus felleus) growing from a tree base near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, August 25, 2013
 Bitter bolete mushroom (Tylopilus felleus) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, August 2, 2016
 Penny bun (Boletus edulis) and Bitter bolete mushroom (Tylopilus felleus) grown at the base of an ant hill in a forest on west side of Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, August 25, 2017
 Bitter bolete mushroom (Tylopilus felleus) near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, August 25, 2013
 Lower view of Penny bun (Boletus edulis) and Bitter bolete mushroom (Tylopilus felleus) grown at the base of an ant hill in a forest on west side of Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, August 25, 2017
 Bitter Bolete mushrooms (Tylopilus felleus) under spruce trees in area of Old Sylvia in Pavlovsk Park. Pavlovsk near Saint Petersburg, Russia, July 28, 2016
 Very small bitter Bolete mushrooms (Tylopilus felleus)(?) under spruce trees near Young Bride Alley in Pavlovsk Park. Pavlovsk near Saint Petersburg, Russia, July 28, 2016
 Dumped collection of bitter bolete mushrooms (Tylopilus felleus) and one young Leccinum on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024
 Little bitter bolete mushrooms (Tylopilus minor) in Lick Creek Park. College Station, Texas, August 19, 2020
 Ghost bolete (Leccinum holopus) in swamp in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Dissected little bitter bolete mushrooms (Tylopilus minor) in Lick Creek Park. College Station, Texas, August 19, 2020
 Old pear-shaped puffball mushrooms (Lycoperdon pyriforme) on a stump near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Bitter bolete mushroom Tylopilus williamsii(?) together with burnt orange bolete (Gyroporus ballouii) and golden-pored boletes (Aureoboletus auriporus) in Lick Creek Park. College Station, Texas, August 8, 2020
 A stump with tinder mushrooms Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Mushrooms Flammulaster limulatus(?) on a log in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Mushrooms Flammulaster limulatus(?) on a barkless log in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Rotten tree stump with green algae near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Bitter bolete (Tylopilus) mushrooms in Lick Creek Park. College Station, Texas, September 21, 2018
 Bitter bolete mushrooms Tylopilus badiceps in Lick Creek Park. College Station, Texas, May 31, 2018
 Bitter bolete (Tylopilus) mushrooms in Lick Creek Park. College Station, Texas, September 18, 2018
 Bitter oyster mushrooms (Panellus stipticus) on a willow stump in bushes in Lavriki, north from Saint Petersburg. Russia, March 14, 2017
 Pelargonium webcap mushrooms (Cortinarius flexipes) in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Silky webcap mushrooms (Cortinarius evernius) in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Tinder mushrooms Flavidoporia pulvinascens (Antrodia pulvinascens) forming stalactite like structure called pseudopilei on a stump in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Pseudopilei (false caps) of tinder fungus (mushrooms) Flavidoporia pulvinascens (Antrodia pulvinascens) on a tree stump near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Bitter bolete mushrooms Tylopilus plumbeoviolaceus in Lick Creek Park. College Station, Texas, July 18, 2018
 Bitter bolete mushrooms Tylopilus ferrugineus(?) in Lick Creek Park. College Station, Texas, October 9, 2018
 Some orange bitter bolete mushrooms (Tylopilus) in Lick Creek Park. College Station, Texas, June 10, 2018
 Dissected bitter bolete mushrooms Tylopilus badiceps in Lick Creek Park. College Station, Texas, May 31, 2018
 Caps of bitter bolete mushrooms Tylopilus badiceps in Lick Creek Park. College Station, Texas, May 31, 2018
 Bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 23, 2018
 Bitter bolete mushrooms Tylopilus plumbeoviolaceus in Lick Creek Park. College Station, Texas, June 6, 2018
 Some bolete mushroom with Hypomyces fungus and a bitter bolete (Tylopilus) in Lick Creek Park. College Station, Texas, July 19, 2018
 Bitter oyster mushrooms (Panellus stipticus) showing gills on a willow stump in Lavriki, north from Saint Petersburg. Russia, March 14, 2017
 Silky webcap mushrooms (Cortinarius evernius) in a swamp in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Pelargonium webcap mushrooms (Cortinarius flexipes) in swamp in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Rare tinder mushrooms Flavidoporia pulvinascens (Antrodia pulvinascens) forming stalactite like structure called pseudopilei on a stump near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Dog lichen (Peltigera membranacea) on a stump near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Bitter bolete mushrooms (Tylopilus) with brown caps in Lick Creek Park. College Station, Texas, June 10, 2018
 Dissected small bitter bolete mushrooms (Tylopilus) in Lick Creek Park. College Station, Texas, June 2, 2020
 Dissected bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 23, 2018
 Little bitter bolete mushrooms (Tylopilus minor) in an oak forest in Lick Creek Park. College Station, Texas, June 10, 2018
 Bitter violet-grey bolete mushrooms Tylopilus plumbeoviolaceus in Lick Creek Park. College Station, Texas, May 31, 2018
 Pair of bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 2, 2018
 Underside of bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 2, 2018
 Yellow American blusher (Amanita flavorubens), bitter bolete Tylopilus plumbeoviolaceus, and gilled bolete mushrooms Phylloporus foliiporus (Phylloporus rhodoxanthus) in Lick Creek Park. College Station, Texas, June 6, 2018
 Dissected little bitter bolete mushrooms (Tylopilus minor) in an oak forest in Lick Creek Park. College Station, Texas, June 10, 2018
 Some small bitter bolete mushrooms (Tylopilus) with large pores in Lick Creek Park. College Station, Texas, June 2, 2020
 Dissected bitter bolete mushrooms (Tylopilus) with brown caps in Lick Creek Park. College Station, Texas, June 10, 2018
 Reddish-brown bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, June 2, 2020
 Bitter oysterling mushrooms (Panellus stipticus) in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
 Gills of bitter oysterling mushrooms (Panellus stipticus) in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
 Bitter bracket mushroom (Postia stiptica) on a spruce stump in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Underside of bitter bracket mushroom (Postia stiptica) on a spruce stump in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Bitter bolete mushrooms Tylopilus williamsii in Lake Bryan Park. Bryan, Texas, October 10, 2018
 Mature bitter bolete mushrooms (Tylopilus) in Lake Bryan Park. Bryan, Texas, October 10, 2018
 Flavidoporia pulvinascens (Antrodia pulvinascens) mushroom taken from a tree stump in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Bitter bolete mushrooms (Tylopilus rubrobrunneus) and Golden Threads Lepidella (Amanita canescens) in Lick Creek Park. College Station, Texas, July 2, 2018
 Cross section of bitter bracket mushroom (Postia stiptica) on a spruce stump in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Stalactite structure on a stump by a tinder mushroom Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Stalactite like pseudopilei of Flavidoporia pulvinascens (Antrodia pulvinascens) mushroom on a tree stump in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Stalactite like pseudopilei of Flavidoporia pulvinascens (Antrodia pulvinascens) mushroom hanging from a tree stump near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Stalactite like pseudopilei of Flavidoporia pulvinascens (Antrodia pulvinascens) mushroom hanging from a tree stump in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Stalactite incrustation (pseudopilei) of a tree stump by a tinder mushroom Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Stalactite structure (pseudopilei) of a tinder mushroom Flavidoporia pulvinascens (Antrodia pulvinascens) on a tree stump near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Cinnamon fungus Asterodon ferruginosus (Asterodon ferruginosum) on a mossy stump near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Underside of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Spores (in KOH) of bitter bolete mushrooms Tylopilus rubrobrunneus collected from Sam Houston National Forest north from Montgomery. Texas, September 26, 2024
 Bitter bolete mushrooms Tylopilus williamsii in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 14, 2018
 Bitter bolete (Tylopilus) mushrooms on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018
 Cross section of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Pore surface of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Texture of pores of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Stalactite incrustation (pseudopilei) of a tree stump by a rare tinder mushroom Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Stalactite incrustation (pseudopilei) of a tree stump by a rare tinder mushroom Flavidoporia pulvinascens (Antrodia pulvinascens) near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Dissected bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Some bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Underside of bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, June 16, 2018
 Pale violet bitter bolete mushrooms (Tylopilus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
 Rusty brown fungus Asterodon ferruginosus (Asterodon ferruginosum) on a rotten spruce stump near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Bitter bracket mushroom (Postia stiptica) on a spruce stump in Tarkhovka near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018
 Dissected bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Brown bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, June 10, 2018
 Underside of some bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Bitter bolete mushroom Tylopilus plumbeoviolaceus(?) in Lick Creek Park. College Station, Texas, June 4, 2018
 Rusty brown fungus Asterodon ferruginosus (Asterodon ferruginosum) covering a rotten spruce stump near extension of Planernaya Street in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 21, 2017
 Young red banded webcap mushroom (Cortinarius armillatus) in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Bitter violet-grey bolete mushrooms Tylopilus plumbeoviolaceus in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020
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