 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme)(?) in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Compact group of pear-shaped stump puffball mushrooms (Lycoperdon pyriforme) in Sosnovka Park. Saint Petersburg, Russia, October 31, 2016
 Last year pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Kiwanis Nature Trail. College Station, Texas, March 1, 2018
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) with some fungus on an oak tree near Lisiy Nos, west from Saint Petersburg. Russia, March 3, 2017
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Lick Creek Park. College Station, Texas, November 6, 2018
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) east from Kuzmolovo in northern Saint Petersburg. Russia, September 8, 2016
 Mature pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Lick Creek Park. College Station, Texas, November 22, 2018
 Immature pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Lick Creek Park. College Station, Texas, October 30, 2018
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a fallen oak in Lick Creek Park. College Station, Texas, November 6, 2018
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on rotting oak in Lick Creek Park. College Station, Texas, November 6, 2018
 Pear-shaped stump puffball mushroom (Lycoperdon pyriforme, Apioperdon pyriforme) on Kiwanis Nature Trail. College Station, Texas, March 1, 2018
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) on a mossy log east from Kuzmolovo in northern Saint Petersburg. Russia, September 8, 2016
 Masses of pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) near Raccoon Run Trail in Lick Creek Park. College Station, Texas, November 6, 2018
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme) in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018
 Masses of pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a downed oak near Raccoon Run Trail in Lick Creek Park. College Station, Texas, November 6, 2018
 Pear-shaped puffball mushroom (Lycoperdon pyriforme) with spots of fungus on an oak tree near Lisiy Nos, west from Saint Petersburg. Russia, March 3, 2017
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, October 28, 2018
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a tree log on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 10, 2013
 Clusters of pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a tree log on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 10, 2013
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a fallen oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, November 27, 2019
 Close up of pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a tree log on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 10, 2013
 Masses of pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a tree log on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 10, 2013
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a rotten tree on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 10, 2013
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, November 18, 2019
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a fallen oak on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, November 18, 2019
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a stump on Little Lake Creek Loop Trail east from Trailhead No. 4 in Sam Houston National Forest, near Montgomery. Texas, December 22, 2020
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on frying pan collected from a tree log on Kirby Trail in Big Thicket National Preserve. College Station, Texas, November 10, 2013
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) in Sosnovka Park. Saint Petersburg, Russia, August 28, 2016
 Old pear-shaped puffball mushrooms (Lycoperdon pyriforme) in Sosnovka Park. Saint Petersburg, Russia, December 31, 2016
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Kiwanis Nature Trail. College Station, Texas, December 25, 2017
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) shaped like pointed eggs on a birch tree near Lisiy Nos, west from Saint Petersburg, Russia, August 23, 2016
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 16, 2020
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 7, 2021
 Close up of pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Kiwanis Nature Trail. College Station, Texas, December 20, 2017
 Mature pear-shaped puffball mushrooms (Lycoperdon pyriforme) in Sosnovka Park. Saint Petersburg, Russia, November 23, 2016
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on an oak log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on a fallen tree on Kiwanis Nature Trail. College Station, Texas, December 20, 2017
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on rotten wood on Kiwanis Nature Trail. College Station, Texas, December 20, 2017
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) on a logging site near Hallojarvi (Gorynskoe) Lake near Lembolovo, 40 miles north from Saint Petersburg. Russia, April 27, 2017
 Pear-shaped stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in cross section on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 7, 2021
 Dry pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Huntsville Park. Texas, December 28, 2013
 Mature pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Huntsville Park. Texas, December 28, 2013
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on an oak log in Huntsville State Park. Texas, December 18, 2020
 Dry brown pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) in Huntsville Park. Texas, December 28, 2013
 Old spiked puffball mushrooms (Lycoperdon perlatum) near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) in Posiolok near Vyritsa, south from Saint Petersburg, Russia, October 16, 2016
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) near Kavgolovskoe Lake. North from Saint Petersburg, Russia, September 21, 2016
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) near Kavgolovo Lake, north from Saint Petersburg. Russia, September 5, 2016
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme) near Dibuny, north-west from Saint Petersburg, Russia, August 24, 2016
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on rotting oak wood in Huntsville State Park. Texas, December 18, 2020
 White round spots on a spiked puffball mushroom (Lycoperdon perlatum) near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on rotting oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2020
 Pear-shaped puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) near fallen oak branches at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 18, 2021
 Dense cluster of gear-shaped stump puffball mushrooms (Lycoperdon pyriforme) in area of New Sylvia in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 8, 2018
 Stump puffball mushrooms (Lycoperdon pyriforme) on a rotten stump in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 11, 2017
 Stump puffball mushrooms (Lycoperdon pyriforme) near Kuzmolovo, north from Saint Petersburg. Russia, September 24, 2017
 Immature stump puffball mushrooms (Lycoperdon pyriforme)(?) on a mossy stump in Sosnovka Park. Saint Petersburg, Russia, August 28, 2016
 Stump puffball mushrooms (Lycoperdon pyriforme) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 11, 2017
 Stump puffball mushrooms (Lycoperdon pyriforme) on wood in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 11, 2017
 Stump puffball mushrooms (Lycoperdon pyriforme) on a rotten log in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 11, 2017
 Mature stump puffball mushrooms (Lycoperdon pyriforme) behind a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, May 2, 2021
 Sporulating mature stump puffball mushrooms (Lycoperdon pyriforme) behind a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, May 2, 2021
 Overwintered mature stump puffball mushrooms (Lycoperdon pyriforme) behind a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, May 2, 2021
 Rotten tree stump with green algae near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on Kirby Trail in Big Thicket National Preserve. Warren, Texas, November 10, 2018
 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
 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
 Stump puffball mushrooms (Lycoperdon pyriforme, Apioperdon pyriforme) on rotting oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2020
 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 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
 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
 Smooth (soft) puffball (Lycoperdon molle) in roadside bushes of willow in Yuntolovsky Park. Saint Petersburg, Russia, July 7, 2017
 A stump with tinder mushrooms Flavidoporia pulvinascens (Antrodia pulvinascens) in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 False tinder conk mushrooms (Phellinus igniarius) on willow 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
 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
 Puffball mushrooms (Lycoperdon pyriforme) on a tree of Grand Parterre in Letniy Sad (Summer Garden). Saint Petersburg, Russia, October 5, 2016
 Flavidoporia pulvinascens (Antrodia pulvinascens) mushroom taken from a tree stump in northern part of Yuntolovsky Park. Saint Petersburg, Russia, March 9, 2017
 Small spider fallen on snow from a bush near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 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
 Maritime sunburst lichen (Xanthoria parietina) on a tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Crust fungus (mushroom) Corticium roseum on a fallen log near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Crust of a mushroom Cylindrobasidium evolvens on a fallen tree 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
 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
 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
 Purple crust of a mushroom Cylindrobasidium evolvens on a fallen tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Corticioid fungus (mushroom) Cylindrobasidium evolvens on a fallen tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Common puffball mushrooms (Lycoperdon perlatum) near a road in Komarovo, west from Saint Petersburg. Russia, September 6, 2017
 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
 Corticioid fungus (mushroom) Cylindrobasidium evolvens spreading on a fallen tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Texture of corticioid fungus (mushroom) Cylindrobasidium evolvens on a fallen tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 Hoary rosette lichen Physcia aipolia and Xanthoria parietina on a tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 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
 Thin-walled maze polypore mushroom (Blushing Bracket, Daedaleopsis confragosa) near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
 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
 Old false puffball (Reticularia lycoperdon, Enteridium lycoperdon) on an alder(?) tree in area of an old brick factory between Pesochnaya and Dibuny north-west from Saint Petersburg. Russia, March 26, 2017
 Small puffball mushrooms Lycoperdon pratense on a field road in Urochishche Khyanikiayze near Kuzmolovo, north from Saint Petersburg. Russia, July 26, 2017
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