Synonyms: Agaricus americanus, Agaricus bresadolae, Agaricus cupreus, Chamaeceras bresadolae, Fungus bresadolae, Lepiota americana, Lepiota bresadolae, Leucoagaricus bresadolae, Leucocoprinus americanus, Leucocoprinus bresadolae.
Common name: Reddening Lepiota.
Extract from Wikipedia article: Leucoagaricus americanus is a mushroom in the genus Leucoagaricus, native to North America. It was first described by Charles Horton Peck, an American mycologist of the 19th and early 20th centuries, in 1869. It grows in waste places, on stumps, and the ground. It is considered edible, but it might be harmful to ingest the mushroom sometimes.
Polish: Pieczareczka amerykańska, Swedish: Rodnande veckskivling.
Leucoagaricus americanus is a species of mushroom that grows solitary or in small groups in fields, meadows, and along roadsides. In East and Central Texas, it typically fruits from May to October, with a peak in summer months. The cap is 3-6 cm in diameter, white to cream-colored, and often develops brownish stains with age. The gills are free from the stem and turn pinkish-brown as the spores mature. The stem is 3-6 cm tall, 0.5-1.5 cm thick, and has a ring that may disappear with age. It prefers well-drained soils and full sun to partial shade, commonly found in areas with grasses, wildflowers, or open woods.
Reddening Lepiota mushrooms (Leucoagaricus americanus) found under a big log in Lick Creek Park. College Station, Texas, May 28, 2018
Raccoon Run, College Station, TX 77845, USA
Side view of reddening Lepiota mushrooms (Leucoagaricus americanus) in Lick Creek Park. College Station, Texas, May 28, 2018Raccoon Run, College Station, TX 77845, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) found almost under a rotting log in Lick Creek Park. College Station, Texas, May 28, 2018Raccoon Run, College Station, TX 77845, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) on rotten wood in Lick Creek Park. College Station, Texas, May 30, 2018Raccoon Run, College Station, TX 77845, USA
Underside of reddening Lepiota mushroom (Leucoagaricus americanus) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Reddening Lepiota mushroom (Leucoagaricus americanus) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Young mushrooms Leucoagaricus americanus under oaks on New Main Drive on campus of Texas A and M University. College Station, Texas, September 14, 2018New Main Dr, College Station, TX 77840, USA
Leucoagaricus americanus mushrooms in grass on a lawn on campus of Texas A and M University. College Station, Texas, September 14, 2018New Main Dr, College Station, TX 77840, USA
Leucoagaricus americanus mushrooms on a lawn on campus of Texas A and M University. College Station, Texas, September 14, 2018Eller Oceanography and Meteorology Building, 797 Lamar St, College Station, TX 77840, USA
Gills of Leucoagaricus americanus mushrooms on a lawn on campus of Texas A and M University. College Station, Texas, September 14, 2018Eller Oceanography and Meteorology Building, 797 Lamar St, College Station, TX 77840, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) in Lick Creek Park. College Station, Texas, October 5, 2018Post Oak Trail, College Station, TX 77845, USA
Drying reddening Lepiota mushrooms (Leucoagaricus americanus) on a lawn on campus of Texas A and M University. College Station, Texas, August 8, 2019Civil Engineering Bldg, Ross St, College Station, TX 77840, USA
Young reddening Lepiota mushrooms (Leucoagaricus americanus) on mulch under an oak on campus of Texas A and M University. College Station, Texas, August 8, 2019Civil Engineering Bldg, Ross St, College Station, TX 77840, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) under a live oak near Civil Engineering Building on campus of Texas A and M University. College Station, Texas, September 22, 2019Civil Engineering Bldg, Ross St, College Station, TX 77840, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) on rotting oak log in Hensel Park. College Station, Texas, September 16, 2020Hensel Park, College Ave, College Station, TX 77840, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) on rotting wood in Hensel Park. College Station, Texas, September 16, 20204317 Culpepper Dr, College Station, TX 77840, USA
Reddening Lepiota mushrooms (Leucoagaricus americanus) on sawdust piles near Post Oak Trail in Lick Creek Park. College Station, Texas, September 6, 2022Post Oak Trail, College Station, Brazos County, Texas, United States
Mature mushrooms Leucoagaricus americanus on sawdust piles near Post Oak Trail in Lick Creek Park. College Station, Texas, September 6, 2022Post Oak Trail, College Station, Brazos County, Texas, United States
Cluster of mature mushrooms Leucoagaricus americanus on sawdust piles near Post Oak Trail in Lick Creek Park. College Station, Texas, September 6, 2022Post Oak Trail, College Station, Brazos County, Texas, United States
Mushrooms Leucoagaricus americanus on sawdust piles near Post Oak Trail in Lick Creek Park. College Station, Texas, September 6, 2022Post Oak Trail, College Station, Brazos County, Texas, United States
Darkened cap of a mushroom Leucoagaricus americanus on a sawdust pile near Post Oak Trail in Lick Creek Park. College Station, Texas, September 6, 2022Post Oak Trail, College Station, Brazos County, Texas, United States
Spores of mushrooms Leucoagaricus americanus (size 7.9 x 6 micron, spore print light brown) collected from wood chips in Lick Creek Park. College Station, Texas, September 6, 2022
Spore size 7.5 - 8.4 × 5.6 - 6.4 µm, length to width ratio Q = 1.24 - 1.39.
Reddening Lepiota mushrooms (Leucoagaricus americanus) on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 17, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United StatesObservations of Leucoagaricus americanus in East and Central Texas show that the fungus grows in various environments, including under logs, on rotten wood, and in grass on lawns. In Lick Creek Park, College Station, it was found under a big log, on rotting wood, and on sawdust piles. On the campus of Texas A&M University, it grew under oaks, on lawns, and on mulch. In Sam Houston National Forest, it was observed on Caney Creek section of Lone Star Hiking Trail and on Caney Creek Trail. The mushrooms typically appear in late spring to early fall, with young mushrooms emerging in September. They can grow in clusters or singly, and their caps often darken with age. Spores collected from wood chips in Lick Creek Park measured 7.9 x 6 microns and had a light brown spore print.
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