Synonyms: Agaricus appendiculatus, Agaricus candolleanus, Agaricus catarius, Agaricus egenulus, Agaricus felinus, Agaricus stipatus, Agaricus vinosus, Agaricus violaceolamellatus, Drosophila appendiculata, Drosophila candolleana, Hypholoma appendiculatum, Hypholoma candolleanum, Hypholoma catarium, Hypholoma egenulum, Hypholoma felinum, Hypholomopsis appendiculata, Psathyra appendiculata, Psathyra candolleana, Psathyra corrugis, Psathyra tuberosa, Psathyrella appendiculata, Psathyrella corrugis, Psathyrella egenula, Psathyrella elegans, Psathyrella microlepidota, Psathyrella proxima.
Common name: pale brittlestem.
Extract from Wikipedia article: Psathyrella candolleana is mushroom in the family Psathyrellaceae. It is commonly found on lawns or pastures in Europe and North America. In 2014, it was reported from Iraq. The coloring varies between white and golden brown. The cap measures 3–8 cm (1.2–3.1 in) in diameter, and is initially conical, later becoming rounded and finally with upturned margins in maturity. The cap margin is irregular and radially asymmetrical—a defining characteristic of this species. The spore print is purple-brown, while spores are smooth and elliptical, measuring 6.5–8 by 4–5 µm. The specific epithet candolleana honors Swiss botanist Augustin Pyramus de Candolle.
Dutch: Bleke franjehoed, Finnish: Kalvashaprakas, French: Psathyrelle de De Candolle, German: Behangener Mürbling, Hungarian: Fehér porhanyósgomba, Lithuanian: Dekandolio trapiabudė, Polish: Kruchaweczka zaroślowa, Romanian: Bureți nebuni, Russian: Псатирелла Кандолля, Serbian: Бела слабуњавка, Swedish: Vitspröding.
Psathyrella candolleana is a species of mushroom that grows in clusters or rings on rich soil, dung, or decaying organic matter. In East and Central Texas, it typically fruits from spring to fall, with a peak in late summer. The cap is 2-6 cm in diameter, bell-shaped to conic, and ranges in color from brown to grayish-brown, often with a lighter margin. The gills are crowded, narrow, and attached to the stem, which is slender, hollow, and typically the same color as the cap. The spore print is dark brown to purple-brown. This fungus can be found in lawns, pastures, and along roadsides, particularly in areas with rich soil and abundant moisture.
Pale brittlestem (Psathyrella candolleana) mushrooms on a lawn in Wolf Pen Creek Park. College Station, Texas, November 5, 2017
Pale brittlestem (Psathyrella candolleana) mushrooms on a lawn on Anderson Street. College Station, Texas, November 8, 2017
Pale brittlestem mushrooms (Psathyrella candolleana) on Francis Drive. College Station, Texas, November 17, 2017
Pale brittlestem mushrooms (Psathyrella candolleana) in Bee Creek Park. College Station, Texas, February 15, 2018
Pale brittlestem mushrooms (Psathyrella candolleana) in Bee Creek Park. College Station, Texas, June 10, 2019
Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Bee Creek Park. College Station, Texas, June 10, 2019
Brittlestem mushrooms Psathyrella candolleana in Lick Creek Park. College Station, Texas, July 5, 2019
Pale brittlestem mushrooms (Psathyrella candolleana) on a grassy road at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 5, 2020
Dissected pale brittlestem mushrooms (Psathyrella candolleana) on a grassy road at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 5, 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, June 30, 2020
Pale brittlestem mushrooms (Psathyrella candolleana) among grass on a lawn in Bee Creek Park. College Station, Texas, June 30, 2020
Pale brittlestem mushrooms (Psathyrella candolleana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 2, 2020
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 a lawn in College Station Cemetery. College Station, Texas, October 25, 2021
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
Side view of 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
Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Bee Creek Park College Station, Texas, April 25, 2022
Gills of a pale brittlestem mushroom (Psathyrella candolleana) in Bee Creek Park College Station, Texas, April 25, 2022
Spores of pale brittlestem mushrooms (Psathyrella candolleana) in iodine solution, collected in Bee Creek Park College Station, Texas, April 25, 2022
Pale brittlestem mushrooms (Psathyrella candolleana(?)) on dry grass on a forest clearing in Lick Creek Park. College Station, Texas, September 1, 2022
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
Caps of pale brittlestem mushrooms (Psathyrella candolleana(?)) on dry grass on a forest clearing in Lick Creek Park. College Station, Texas, September 1, 2022
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
Pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Wolf Pen Creek Park. College Station, Texas, April 6, 2023
Underside of pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Wolf Pen Creek Park. College Station, Texas, April 6, 2023
Mature pale brittlestem mushrooms (Psathyrella candolleana) on a lawn in Wolf Pen Creek Park. College Station, Texas, April 6, 2023
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
Spore size 7.1 - 8.7 × 4.1 - 5 µm, length to width ratio Q = 1.64 - 1.9.
Spores (in KOH) of pale brittlestem mushrooms (Psathyrella candolleana) collected in Bee Creek Park. College Station, Texas, April 26, 2024
Pale brittlestem (Psathyrella candolleana) on a lawn in Lick Creek Park. College Station, Texas, April 27, 2024The fungus Psathyrella candolleana was observed in East and Central Texas from 2017 to 2024. The majority of sightings were in College Station, particularly in Bee Creek Park, Lick Creek Park, and Wolf Pen Creek Park. The mushrooms were typically found on lawns or grassy areas. Observations occurred throughout the year, with multiple sightings in November, April, June, and September. Some observations included detailed descriptions of the mushrooms' morphology, such as gills and spores. The fungus was also spotted in other locations, including Washington-on-the-Brazos State Historic Site and Sam Houston National Forest. Overall, Psathyrella candolleana appears to be a common species in the region, with a wide distribution and frequent appearances throughout the year.
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