Extract from Wikipedia article: Coprinellus impatiens is a species of fungus in the Psathyrellaceae family. First described in 1821, it has been classified variously in the genera Psathyrella, Pseudocoprinus, Coprinarius, and Coprinus, before molecular phylogenetics reaffirmed it as a Coprinellus species in 2001. The fungus is found in North America and Europe, where the mushrooms grow on the ground in deciduous forests. The fruit bodies have buff caps that are up to 4 cm (1.6 in) in diameter, held by slender whitish stems that can be up to 10 cm (3.9 in) tall. Several other Coprinopsis species that resemble C. impatiens may be distinguished by differences in appearance, habit, or spore morphology.
Inkcap mushrooms Coprinellus impatiens on a side of a sandy road in Lick Creek Park. College Station, Texas, July 11, 2018 Iron Bridge Trail, College Station, TX 77845, USA
Inkcap mushrooms Coprinellus impatiens on a sandy roadside in Lick Creek Park. College Station, Texas, July 11, 2018 Iron Bridge Trail, College Station, TX 77845, USA
Group of inkcap mushrooms Coprinellus impatiens on a sandy roadside in oak forest in Lick Creek Park. College Station, Texas, July 11, 2018 Iron Bridge Trail, College Station, TX 77845, USA
Inkcap mushrooms Coprinellus impatiens on a lawn in Lick Creek Park. College Station, Texas, September 18, 2018 Lick Creek Park, 13600 Rock Prairie Rd, College Station, TX 77845, USA
Piano key inkcap mushrooms (Coprinellus impatiens)(?) or may be Tulosesus in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Side view of piano key inkcap mushrooms (Coprinellus impatiens)(?) or may be Tulosesus in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Piano key inkcap mushrooms (Coprinellus impatiens)(?) on a lawn near a parking place in Lick Creek Park. College Station, Texas, May 9, 2022 Iron Bridge Trail, College Station, Brazos County, Texas, United States
Spores of inkcap mushrooms (Coprinellus impatiens)(?) collected in Lick Creek Park. College Station, Texas, May 9, 2022