Synonyms: Agaricus compactus, Agaricus curvatus, Agaricus fuscescens, Agaricus hygrophilus, Agaricus sarcocephalus, Agaricus spadeceus, Agaricus spadiceus, Corinarius sarcocephalus, Drosophila sarcocephala, Drosophila spadicea, Pilosace spadiceus, Pratella spadicea, Psathyra sarcocephala, Psathyra spadicea, Psathyrella sarcocephala, Psathyrella spadicea, Psilocybe sarcocephala, Psilocybe spadicea.
Common name: chestnut brittlestem.
Extract from Wikipedia article: Psathyrella spadicea or Homophron spadiceum, commonly known as the chestnut brittlestem, is a species of agaric fungus in the family Psathyrellaceae. The fungus was originally described by German mycologist Jacob Christian Schäffer in 1783 as Agaricus spadiceus. Rolf Singer transferred it to the genus Psathyrella in 1951, in which it was classified in the section Spadiceae. In 2015 Örstadius & Larsson recreated the genus Homophron (a name used at the sub-genus level since 1883) for a group of psathyrelloid mushrooms with no veil and with light-coloured spores, and P. spadicea was moved to the new genus.
Arabic: هشيش كستنائي اللون, Hungarian: Vaskos porhanyósgomba, Polish: Kruchaweczka gładka, Swedish: Tuvspröding, Welsh: Coesyn brau gwinau.
Homophron spadiceum is a species of fungus that belongs to the family Psathyrellaceae. It is characterized by its small to medium-sized fruiting bodies, which have a bell-shaped to convex cap that ranges in color from reddish-brown to golden brown, and a slender stem. In East and Central Texas, Homophron spadiceum typically grows in clusters on decaying wood, especially hardwoods like oak and maple, and can be found in a variety of habitats, including forests, woodland edges, and urban areas. The fungus fruits from spring to fall, with peak activity during the summer months.
Chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) in Lick Creek Park. College Station, Texas, October 30, 2018
Raccoon Run, College Station, TX 77845, USA
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, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
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, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
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, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
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, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
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, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
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, 2021Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) (cap 10 cm, stem 2 cm thick) at the base of a hackberry tree in area of oxbows, on Racoon Run Trail in Lick Creek Park. College Station, Texas, November 15, 2023Racoon Run Trail, College Station, Brazos County, Texas, United States
Underside of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) at the base of a hackberry tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, November 15, 2023Racoon Run Trail, College Station, Brazos County, Texas, United States
Cystidia and spores of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
Basidia and spores of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
Tissues (in Congo Red) of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
Spores (in KOH, spore print brown) of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
Spores (in KOH) of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023Observations of Homophron spadiceum in East and Central Texas reveal that this fungus grows in various environments, including near mouse burrows in old elm trees and at the base of hackberry trees. The mushrooms were found in Lick Creek Park, College Station, and Sam Houston National Forest, Montgomery. They typically have a chestnut-brown cap and a brittle stem, with gills underneath. The spores are brown in KOH and have distinctive cystidia and basidia. The mushrooms often grow in clusters, with some specimens reaching a cap size of 10 cm and a stem thickness of 2 cm. Microscopic examination of the tissues and spores reveals characteristic features, including the presence of Congo Red-staining tissues and brown spore prints.
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