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Chestnut brittlestem

Fungi: Basidiomycota: Agaricomycetes: Agaricales: Psathyrellaceae: Homophron spadiceum (P.Kumm.) Örstadius & E.Larss.

Homophron spadiceum – chestnut brittlestem

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.

Photos of this mushroom from East and Central Texas

Brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2021-12-31.htm">December 31, 2021</A>
LinkBrittlestem 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
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Side view of brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2021-12-31.htm">December 31, 2021</A>
LinkSide 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
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Underside of brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2021-12-31.htm">December 31, 2021</A>
LinkUnderside 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
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Gills of brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2021-12-31.htm">December 31, 2021</A>
LinkGills 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
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Cluster of brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2021-12-31.htm">December 31, 2021</A>
LinkCluster 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
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Close-up of gills of brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2021-12-31.htm">December 31, 2021</A>
LinkClose-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
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Chestnut brittlestem mushrooms <B>Homophron spadiceum</B> (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, <A HREF="../date-en/2023-11-15.htm">November 15, 2023</A>
LinkChestnut 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, 2023
Location on mapsRacoon Run Trail, College Station, Brazos County, Texas, United States
Underside of chestnut brittlestem mushrooms <B>Homophron spadiceum</B> (Psathyrella spadicea) at the base of a hackberry tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, <A HREF="../date-en/2023-11-15.htm">November 15, 2023</A>
LinkUnderside 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, 2023
Location on mapsRacoon Run Trail, College Station, Brazos County, Texas, United States
Cystidia and spores of chestnut brittlestem mushrooms <B>Homophron spadiceum</B> (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
LinkCystidia 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 <B>Homophron spadiceum</B> (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
LinkBasidia 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 <B>Homophron spadiceum</B> (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
LinkTissues (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 <B>Homophron spadiceum</B> (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
LinkSpores (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 <B>Homophron spadiceum</B> (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
LinkSpores (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, 2023

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