 Bitter bolete mushrooms (Tylopilus felleus) in Dibuny, north-west from Saint Petersburg, Russia, August 9, 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
 Bitter bolete mushrooms (Tylopilus felleus) near a stump in Yuntolovsky Park. Saint Petersburg, Russia, August 3, 2017
 Young bitter bolete mushroom (Tylopilus felleus) near Lisiy Nos, west from Saint Petersburg. Russia, July 27, 2017
 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
 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
 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
 Young bitter bolete mushrooms (Tylopilus felleus) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
 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 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
 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
 Some bolete mushroom with Hypomyces fungus and a bitter bolete (Tylopilus) in Lick Creek Park. College Station, Texas, July 19, 2018
 Bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Underside 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
 Cross section 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
 Brown birch bolete mushroom (Leccinum scabrum) on a side of a sandy ditch near Dibuny, north-west from Saint Petersburg. Russia, August 20, 2017
 Large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) and another bolete on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Rusty bolete (Boletus ferrugineus) with a parasitic fungus bolete mould (Hypomyces chrysospermus) on roadside near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017
 Bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Dissected rusty bolete (Boletus ferrugineus) with a parasitic fungus bolete mould (Hypomyces chrysospermus) on roadside near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017
 Little bitter bolete mushrooms (Tylopilus minor) in Lick Creek Park. College Station, Texas, August 19, 2020
 Demonstrating a large bitter bolete mushroom (Tylopilus) after a mushroom walk in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019
 Some bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, June 16, 2018
 Dissected bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Underside of bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Dissected little bitter bolete mushrooms (Tylopilus minor) in Lick Creek Park. College Station, Texas, August 19, 2020
 Dissected 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
 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
 Dissected bitter bolete mushroom Tylopilus plumbeoviolaceus(?) in Lick Creek Park. College Station, Texas, June 4, 2018
 Underside of brown bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, June 10, 2018
 Pale violet bitter bolete mushroom (Tylopilus violatinctus) in Hensel Park. College Station, Texas, June 3, 2021
 Dissected brown bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, June 10, 2018
 Spores of brown bolete mushroom Tylopilus (taste not bitter), collected in Sam Houston National Forest. Texas, September 21, 2022
 Cross section of a bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Cap of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Underside of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Pale violet bitter bolete mushroom (Tylopilus violatinctus) in Lick Creek Park. College Station, Texas, July 15, 2021
 Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Pore surface of some brown bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Section of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, May 4, 2024
 Underside of a bitter bolete mushroom (Tylopilus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
 Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus(?)) in Lick Creek Park. College Station, Texas, July 13, 2021
 Bitter bolete mushroom Tylopilus plumbeoviolaceus on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 12, 2019
 Cross section of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Spores of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) collected in Lick Creek Park. College Station, Texas, May 4, 2024
 Underside of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Cross section of a bitter bolete mushroom (Tylopilus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
 Brown bolete mushroom Tylopilus (taste not bitter, may be sweet) on Richards Loop Trail in Sam Houston National Forest. Texas, September 21, 2022
 Cross section of pale violet bitter bolete mushroom (Tylopilus violatinctus) in Hensel Park. College Station, Texas, June 3, 2021
 Tricholoma aestuans mushrooms (bitter) near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Cross section of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Foxy bolete mushroom (Leccinum vulpinum) near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
 Suede bolete mushroom (Boletus subtomentosus)(?) near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017
 Birch bolete mushroom (Leccinum variicolor(?)) near Dibuny, north-west from Saint Petersburg. Russia, August 25, 2018
 Cross section of young reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus(?)) in Lick Creek Park. College Station, Texas, July 13, 2021
 Red cap bolete mushroom Leccinum albostipitatum(?) with white stem near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) in Lick Creek Park. College Station, Texas, July 2, 2018
 Cap of bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018
 Bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018
 Dissected bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018
 Underside of bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018
 Orange cap bolete mushroom (Leccinum aurantiacum, Russian name Podosinovik) near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Rusty bolete mushroom (Boletus ferrugineus, Russian name Mokhovik) near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Dissected large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) together with brown fibrecap (Inocybe) in Lick Creek Park. College Station, Texas, May 4, 2024
 Side view of a bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018
 Pale orange cap bolete mushroom with white stem Leccinum albostipitatum(?) near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Red cap bolete mushroom Leccinum albostipitatum(?) and a porcino mushrooms in a dense forest near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Pink pores of a large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Bitter bolete mushroom Tylopilus plumbeoviolaceus and Amanita jacksonii or may be A. arkansana, Amanita stirps Hemibapha in Lick Creek Park. College Station, Texas, June 3, 2018
 Pink underside surface of a large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) on Kiwanis Nature Trail. College Station, Texas, July 3, 2019
 Crooked pale orange cap bolete mushroom with white stem Leccinum albostipitatum(?) near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Orange cap bolete mushroom (Leccinum aurantiacum, Russian name Podosinovik) with brown stem near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
 Silky webcap mushroom (Cortinarius evernius) in Dibuny, near Saint Petersburg. Russia, August 20, 2017
 Blue tooth mushroom (Hydnellum caeruleum) in Dibuny, near Saint Petersburg. Russia, August 20, 2017
 Bitter bolete mushroom Porphyrellus sordidus (Tylopilus sordidus) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, September 22, 2018
 Cross section of a bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018
 Tiger s eye mushroom (Coltricia perennis) near Dibuny, north-west from Saint Petersburg. Russia, August 28, 2017
 Young tawny grisette mushroom (Amanita fulva) in Dibuny, near Saint Petersburg. Russia, August 20, 2017
 Brittlegill mushroom Russula paludosa near Dibuny, north-west from Saint Petersburg. Russia, August 20, 2017
 Bitter bolete mushroom Tylopilus plumbeoviolaceus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 13, 2018
 Side view of a blue tooth mushroom (Hydnellum caeruleum) in Dibuny, near Saint Petersburg. Russia, August 20, 2017
 White saddle mushroom (Helvella crispa) near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017
 Young penny bun mushroom (Boletus edulis) near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017
 Pale violet brittlegill (Russula) mushroom near Dibuny, north-west from Saint Petersburg. Russia, August 28, 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
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