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  • Under Assessment
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Stropharia ambigua (Peck) Zeller

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Scientific name
Stropharia ambigua
Author
(Peck) Zeller
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Strophariaceae
Assessment status
Under Assessment
Proposed by
Noah Siegel
Assessors
Noah Siegel
Comments etc.
James Westrip

Assessment Notes

Justification

Stropharia ambigua is an abundant and widespread mushroom in western North America.

It is one of the most common mushrooms in the Pacific Northwest, and should be listed as Least Concern (LC).


Taxonomic notes

Described from a collection made near Portland, Oregon, USA as Hypholoma ambiguum (Peck 1898), transferred into Stropharia (Zeller 1914) where is resides today.


Why suggested for a Global Red List Assessment?

Stropharia ambigua is an abundant and widespread mushroom in western North America.

It is one of the most common mushrooms in the Pacific Northwest, and should be listed as Least Concern (LC).


Geographic range

From south-central Alaska into southern California, east into the northern Rocky Mountains. Occasional of the range fringes, very abundant in northern California and the Pacific Northwest.


Population and Trends

Population is widespread, and it is a very common species, especially in disturbed and urbanized habitats.

Population Trend: Stable


Habitat and Ecology

Saprotrophic, growing on conifer needle duff and moss, small woody debris, soil or woodchips.

Temperate Forest

Threats

No specific threats have been identified with regards to this species.


Conservation Actions

No specific conservation action is needed with regards to this species.


Research needed

Taxonomy work in collections from elsewhere (China, etc) going by the name Stropharia ambigua.

Taxonomy

Use and Trade

None known.


Bibliography

Peck, C.H. 1898. New species of fungi. Bull. Torrey bot. Club 25(6): 321-328.

Siegel, N. and Schwarz, C. 2016. Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.

Zeller, S.M. 1914. The Development of Stropharia ambigua. Mycologia 6(3): 139-145.

Wood, M.G. and Stevens, F.A. 2021. MykoWeb; The Fungi of California https://www.mykoweb.com/CAF/species/Stropharia_ambigua.html


Country occurrence

Regional Population and Trends

Country Trend Redlisted