Psathyrella piluliformis

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Psathyrella piluliformis
Psathyrella piluliformis, Common Stump Brittlestem.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Psathyrellaceae
Genus: Psathyrella
Species:
P. piluliformis
Binomial name
Psathyrella piluliformis
(Bull.) P.D.Orton (1969)
Synonyms [1]
  • Agaricus piluliformisBull. (1783)
  • Psathyrella hydrophila(Bull.) Maire
Cluster of mature brittlestem mushrooms (Psathyrella piluliformis), after a rain Psathyrella piluliformis 2025 G1.jpg
Cluster of mature brittlestem mushrooms (Psathyrella piluliformis), after a rain

Psathyrella piluliformis, commonly known as the clustered brittlestem, [2] is a species of agaric fungus in the family Psathyrellaceae.

Contents

Description

It produces fruit bodies (mushrooms) with broadly convex caps measuring 2–5 cm (34–2 inches) in diameter. [3] The caps are chestnut to reddish brown, the color fading with age and with dry weather. [3] Fragments of the partial veil may remain on the cap margin, and as a wispy band of hairs on the stipe. [3]

The closely spaced gills have an adnate attachment to the stipe. [3] They are initially tan until the spores mature, when the gills turn dark brown. [3] The stipe is 2–7 cm tall and 3–7 mm wide, white, smooth, hollow, and bulging at the base. [3] The spore print is dark brown, sometimes purplish. [4]

Similar species

Similar species include Psathyrella carbonicola, P. longipes , P. longistriata , P. multipedata, P. spadicea , and Parasola conopilus . [3] [5]

Habitat and distribution

Fruiting occurs in clusters at the base of hardwood stumps. [3]

Uses

The species is considered edible but of low quality, [1] [6] with fragile flesh and being difficult to identify. [5]

See also

References

  1. 1 2 "Psathyrella piluliformis, Common Stump Brittlestem mushroom". First-Nature.com. Retrieved 2021-03-04.
  2. Siegel, Noah; Schwarz, Christian (September 1, 2024). Mushrooms of Cascadia: A Comprehensive Guide to Fungi of the Pacific Northwest. Humboldt County, CA: Backcountry Press. p. 101. ISBN   9781941624197.
  3. 1 2 3 4 5 6 7 8 Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 235–236. ISBN   978-0-520-95360-4. OCLC   797915861.
  4. Audubon (2023). Mushrooms of North America. Knopf. p. 609. ISBN   978-0-593-31998-7.
  5. 1 2 Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. pp. 203–204. ISBN   978-0-88192-935-5.
  6. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 232. ISBN   978-1-55407-651-2.
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