 Red edge brittlestem mushrooms (Psathyrella corrugis, Psathyrella gracilis) on a mulched path in Bee Creek Park. College Station, Texas, December 14, 2018
 Gills of red edge brittlestem mushrooms (Psathyrella corrugis, Psathyrella gracilis) on a mulched path in Bee Creek Park. College Station, Texas, December 14, 2018
 Red edge brittlestem mushrooms (Psathyrella corrugis, Psathyrella gracilis) on wood chips in Bee Creek Park. College Station, Texas, December 14, 2018
 Group of brittlegill (Psathyrella)(?) mushrooms on a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Brittlegill (Psathyrella)(?) mushrooms on a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Carpet of brittlegill (Psathyrella)(?) mushrooms on a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Brittlegill (Psathyrella)(?) mushrooms carpeting a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Masses of brittlegill (Psathyrella)(?) mushrooms on a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Gills of brittlegill (Psathyrella)(?) mushrooms on a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Dense cluster of brittlegill (Psathyrella)(?) mushrooms on a mulched path in Bee Creek Park. College Station, Texas, November 28, 2018
 Brittlestem mushrooms Psathyrella atrospora on wood chips on a path in bushes in Bee Creek Park. College Station, Texas, November 11, 2021
 Group of brittlestem (Psathyrella) mushrooms on wood chips under utility poles in Lemontree Park. College Station, Texas, November 4, 2017
 Pale brittlestem mushrooms (Psathyrella candolleana) in Bee Creek Park. College Station, Texas, February 15, 2018
 Brittlestem (Psathyrella) mushrooms on mulch in Lick Creek Park. College Station, Texas, September 11, 2018
 Brittlestem mushrooms Psathyrella umbonata on a recent cutting in Lick Creek Park. College Station, Texas, June 21, 2018
 Brittlestem mushrooms Psathyrella corrugis(?) on mulch near railroad in Lembolovo, north from Saint Petersburg. Russia, September 20, 2017
 Brittlestem mushrooms Psathyrella corrugis on mulch in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
 Young brittlestem mushrooms Psathyrella corrugis on a lawn in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
 Brittlestem mushrooms Psathyrella corrugis on mulch, on a lawn in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
 Brittlestem mushrooms Psathyrella corrugis on wood chips in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
 Fading caps of brittlestem mushrooms Psathyrella corrugis on a lawn in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
 Group of magpie inkcap mushrooms (Coprinopsis picacea) on mulched path of Post Oak Trail in Lick Creek Park. College Station, Texas, September 11, 2018
 Brittlestem (Psathyrella) mushrooms in Lick Creek Park. College Station, Texas, June 2, 2020
 Close-up of brittlestem mushrooms Psathyrella atrospora in Bee Creek Park. College Station, Texas, November 11, 2021
 Brittlestem mushrooms Psathyrella candolleana in Lick Creek Park. College Station, Texas, July 5, 2019
 Caps of brittlestem mushrooms Psathyrella atrospora in Bee Creek Park. College Station, Texas, November 3, 2017
 Pale brittlestem mushrooms (Psathyrella candolleana) in Bee Creek Park. College Station, Texas, June 10, 2019
 Brittlestem mushrooms Psathyrella atrospora on a trail in Bee Creek Park. College Station, Texas, November 3, 2017
 Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Bee Creek Park. College Station, Texas, June 30, 2020
 Pale brittlestem mushrooms (Psathyrella candolleana) in Lick Creek Park. College Station, Texas, June 2, 2020
 Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Bee Creek Park College Station, Texas, April 25, 2022
 Brittlestem mushrooms Psathyrella atrospora on wood chips in Bee Creek Park. College Station, Texas, November 3, 2017
 Brittlestem mushrooms Psathyrella atrospora growing on a trail in Bee Creek Park. College Station, Texas, November 3, 2017
 Close-up of small brittlestem mushrooms (Psathyrella) in Lick Creek Park. College Station, Texas, June 26, 2020
 Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Bee Creek Park. College Station, Texas, June 10, 2019
 Small brittlestem mushrooms (Psathyrella) on mulch in Lick Creek Park. College Station, Texas, June 26, 2020
 Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Wolf Pen Creek Park. College Station, Texas, April 6, 2023
 Pale brittlestem mushrooms (Psathyrella candolleana) among grass on a lawn in Bee Creek Park. College Station, Texas, June 30, 2020
 Pale brittlestem (Psathyrella candolleana) mushrooms on a lawn in Wolf Pen Creek Park. College Station, Texas, November 5, 2017
 Brittlestem mushrooms Psathyrella umbonata on a sewage cutting in Lick Creek Park. College Station, Texas, January 15, 2020
 Brittlestem (Psathyrella) mushrooms on a recent cutting through oak forest in Lick Creek Park. College Station, Texas, June 28, 2019
 Brown and pale buff-brown caps of brittlestem mushrooms Psathyrella corrugis on wood chips in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, September 12, 2017
 Small brittlestem (Psathyrella) mushrooms on a wet path of Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022
 Side view of brittlestem mushrooms Psathyrella atrospora on wood chips in Bee Creek Park. College Station, Texas, November 11, 2021
 Brittlestem (Psathyrella) mushrooms on wood chips near Nature Center in Lick Creek Park. College Station, Texas, August 24, 2022
 Underside of pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Wolf Pen Creek Park. College Station, Texas, April 6, 2023
 Brittlestem mushrooms Psathyrella atrospora growing on wood chips on a trail in Bee Creek Park. College Station, Texas, November 3, 2017
 Mature pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Wolf Pen Creek Park. College Station, Texas, April 6, 2023
 Underside of small brittlestem (Psathyrella) mushrooms on a wet path of Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022
 Masses of small brittlestem (Psathyrella) mushrooms on a wet path of Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022
 Pale brittlestem mushrooms (Psathyrella candolleana(?)) on dry grass on a forest clearing in Lick Creek Park. College Station, Texas, September 1, 2022
 Spores of pale brittlestem mushrooms (Psathyrella candolleana) in iodine solution, collected in Bee Creek Park College Station, Texas, April 25, 2022
 Spores (in KOH) of mature pale brittlestem mushrooms (Psathyrella candolleana) from a lawn, collected a day before in Wolf Pen Creek Park. College Station, Texas, April 7, 2023
 Brittlestem mushrooms Psathyrella umbonata on disturbed soil of a recent sewage cutting in Lick Creek Park. College Station, Texas, January 15, 2020
 Caps of pale brittlestem mushrooms (Psathyrella candolleana(?)) on dry grass on a forest clearing in Lick Creek Park. College Station, Texas, September 1, 2022
 Drying caps of brittlestem mushrooms (Psathyrella) near Birch Creek Unit of Somerville Lake State Park. Texas, October 7, 2018
 Whitish caps of brittlestem mushrooms (Psathyrella) near Birch Creek Unit of Somerville Lake State Park. Texas, October 7, 2018
 Group of brown brittlestem mushrooms Psathyrella cernua (Homophron cernuum)(?) on the central alley in Park of Polytechnic Institute. Saint Petersburg, Russia, September 19, 2017
 Brittlestem mushrooms (Psathyrella) on a recently flooded road near Birch Creek Unit of Somerville Lake State Park. Texas, October 7, 2018
 Brittlestem (Psathyrella) mushrooms on wood chips under utility poles in Lemontree Park. College Station, Texas, November 4, 2017
 Spores (in Lugol solution) of pale brittlestem mushrooms (Psathyrella candolleana(?)) from dry grass on a forest clearing collected in Lick Creek Park. College Station, Texas, September 1, 2022
 Gills of a pale brittlestem mushroom (Psathyrella candolleana) in Bee Creek Park College Station, Texas, April 25, 2022
 Brittlestem mushrooms (Psathyrella) in large numbers in grass on a recently flooded road near Birch Creek Unit of Somerville Lake State Park. Texas, October 7, 2018
 Pale brittlestem mushrooms (Psathyrella candolleana) on Francis Drive. College Station, Texas, November 17, 2017
 Pale brittlestem (Psathyrella candolleana) mushrooms on a lawn on Anderson Street. College Station, Texas, November 8, 2017
 Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in College Station Cemetery. College Station, Texas, October 25, 2021
 Gills of a pale brittlestem mushroom (Psathyrella candolleana(?)) on dry grass on a forest clearing in Lick Creek Park. College Station, Texas, September 1, 2022
 Brittlegill (Psathyrella) mushrooms in Bee Creek Park. College Station, Texas, March 3, 2018
 Brittlestem (Psathyrella) mushrooms near Orekhovo, 45 miles north from Saint Petersburg. Russia, August 30, 2018
 Brittlegill (Psathyrella) mushrooms in Bee Creek Park. College Station, Texas, December 26, 2017
 Magpie inkcap mushrooms (Coprinopsis picacea) on mulched path in Lick Creek Park. College Station, Texas, June 21, 2018
 Brittlegill mushrooms Psathyrella atrospora in Bee Creek Park. College Station, Texas, December 21, 2017
 Brittlegill (Psathyrella) mushrooms near a trail in Bee Creek Park. College Station, Texas, December 21, 2017
 Brittlegill (Psathyrella)(?) mushrooms on black background in Bee Creek Park. College Station, Texas, November 28, 2018
 Brittlegill (Psathyrella) mushrooms under oaks in Lick Creek Park. College Station, Texas, July 16, 2018
 Magpie inkcap mushrooms (Coprinopsis picacea) on mulched path of Post Oak Trail in Lick Creek Park. College Station, Texas, September 11, 2018
 Chestnut brittlestem mushrooms (Homophron spadiceum, Psathyrella spadicea)(?) near Lembolovo, north from Saint Petersburg. Russia, August 24, 2018
 Brittlestem (Psathyrella) mushrooms on roadside in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018
 Masses of magpie inkcap mushrooms (Coprinopsis picacea) on mulched path of Post Oak Trail in Lick Creek Park. College Station, Texas, September 11, 2018
 Brittlestem (Psathyrella) mushrooms in a roadside ditch on Lenin Trail near Dibuny, north-west from Saint Petersburg, Russia, August 15, 2018
 Brittlestem mushrooms (Psathyrella) on roadside mulch on Lenin Trail near Dibuny, north-west from Saint Petersburg, Russia, August 15, 2018
 Chestnut brittlestem mushrooms (Homophron spadiceum, Psathyrella spadicea)(?) near Dibuny, north-west from Saint Petersburg, Russia, September 3, 2018
 Dissected brittlestem mushroom (Psathyrella) taken from a lawn on Anderson Street. College Station, Texas, October 22, 2017
 Brittlestem (Psathyrella) mushrooms among charcoal in a roadside ditch on Lenin Trail near Dibuny, north-west from Saint Petersburg, Russia, August 15, 2018
 Pale brittlestem mushrooms (Psathyrella candolleana) on mulch near Tarkhovka train stop near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018
 Psathyrella umbonata mushrooms on wood chips on a forest cutting in Lick Creek Park. College Station, Texas, October 12, 2018
 Brittlestem mushroom (Psathyrella) near Lisiy Nos, south from Saint Petersburg. Russia, August 17, 2018
 Large pale brittlestem mushrooms (Psathyrella candolleana) from cut bushes on mulch near Tarkhovka train stop near Sestroretsk, west from Saint Petersburg. Russia, August 27, 2018
 Spring brittlestem mushrooms Psathyrella spadiceogrisea from Sosnovka Park. Saint Petersburg, Russia, May 27, 2017
 Pale brittlestem mushrooms (Psathyrella candolleana) near a road in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2020
 Pale brittlestem mushrooms (Psathyrella candolleana) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 19, 2021
 Spores of brittlestem (Psathyrella) mushrooms from a dry shallow creek collected in Sam Houston National Forest. Texas, June 15, 2022
 Brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in front of a mouse burrow in an old elm tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 31, 2021
 Early spring brittlestem mushrooms Psathyrella spadiceogrisea in Sosnovka Park. Saint Petersburg, Russia, May 27, 2017
 Underside of brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in front of a mouse burrow in an old elm tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 31, 2021
 Cluster of brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in front of a mouse burrow in an old elm tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 31, 2021
 Gills of brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in front of a mouse burrow in an old elm tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 31, 2021
 Close-up of gills of brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in front of a mouse burrow in an old elm tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 31, 2021
 Side view of brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in front of a mouse burrow in an old elm tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 31, 2021
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