Psathyrella spadicea

Psathyrella spadicea
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Psathyrellaceae
Genus:	Psathyrella
Species:	P. spadicea
Binomial name
	Psathyrella spadicea; (Schaeff.) Singer (1951)
Synonyms
	Agaricus spadiceus Schaeff. (1783); Homophron spadiceum (P. Kumm.) Örstadius & E. Larss. (2015);

Psathyrella spadicea or Homophron spadiceum,^[1] commonly known as the chestnut brittlestem,^[2] is a species of agaric fungus in the family Psathyrellaceae.

Taxonomy

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.^[3] In 2015 Örstadius & Larsson recreated the genus Homophron (a name used at the sub-genus level since 1883)^[1] for a group of psathyrelloid mushrooms with no veil and with light-coloured spores, and P. spadicea was moved to the new genus.^[4]^[5]

Description

The brown cap is up to 7 centimetres (2+3⁄4 in) wide. The tan to brown gills are very close. The stem is up to 8 cm long and 1 cm thick. The spore print is pinkish-brown.^[6] Outside of its genus, it can resemble members of Hebeloma.^[6]

Habitat and distribution

The species can be found near the base of hardwood trees. In North America, it is found in the Pacific Northwest, northern California, and in the east.^[6] It is also found in Europe.^{[citation needed]}

Uses

This mushroom is edible.^[7]

References

^ ^a ^b "the Homophron spadiceum page". Species Fungorum. Royal Botanic Gardens Kew. Retrieved 2021-07-13.
^ "Recommended English Names for Fungi in the UK" (PDF). British Mycological Society. Archived from the original (PDF) on 2011-07-16.
^ Vašutová M. (2008). "Taxonomic studies on Psathyrella sect. Spadiceae" (PDF). Czech Mycology. 60 (2): 137–71. doi:10.33585/cmy.60201.
^ Örstadius L, Ryberg M, Larsson E (2015). "Molecular phylogenetics and taxonomy in Psathyrellaceae (Agaricales) with focus on psathyrelloid species: introduction of three new genera and 18 new species". Mycological Progress. 14 (5). doi:10.1007/s11557-015-1047-x. S2CID 16637489. Retrieved 2021-07-13.
^ Læssøe, H.; Petersen, Jens (2019). Fungi of Temperate Europe. Princeton University Press. p. 578. ISBN 9780691180373.
^ ^a ^b ^c Audubon (2023). Mushrooms of North America. Knopf. p. 602. ISBN 978-0-593-31998-7.
^ Boa ER. (2004). Wild Edible Fungi: A Global Overview of Their Use and Importance to People. Food & Agriculture Organization. p. 138. ISBN 978-92-5-105157-3.

External links

Psathyrella spadicea in Index Fungorum

This Psathyrellaceae article is a stub. You can help Wikipedia by expanding it.

[SF-1] "the Homophron spadiceum page". Species Fungorum. Royal Botanic Gardens Kew. Retrieved 2021-07-13.

[BMS-2] "Recommended English Names for Fungi in the UK" (PDF). British Mycological Society. Archived from the original (PDF) on 2011-07-16.

[Vašutová_2008-3] Vašutová M. (2008). "Taxonomic studies on Psathyrella sect. Spadiceae" (PDF). Czech Mycology. 60 (2): 137–71. doi:10.33585/cmy.60201.

[Örstadius_2015-4] Örstadius L, Ryberg M, Larsson E (2015). "Molecular phylogenetics and taxonomy in Psathyrellaceae (Agaricales) with focus on psathyrelloid species: introduction of three new genera and 18 new species". Mycological Progress. 14 (5). doi:10.1007/s11557-015-1047-x. S2CID 16637489. Retrieved 2021-07-13.

[Laessoe2019-5] Læssøe, H.; Petersen, Jens (2019). Fungi of Temperate Europe. Princeton University Press. p. 578. ISBN 9780691180373.

[audu-6] Audubon (2023). Mushrooms of North America. Knopf. p. 602. ISBN 978-0-593-31998-7.

[Boa_2004-7] Boa ER. (2004). Wild Edible Fungi: A Global Overview of Their Use and Importance to People. Food & Agriculture Organization. p. 138. ISBN 978-92-5-105157-3.

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