• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Xerocomellus atropurpureus J.L. Frank, N. Siegel & C.F. Schwarz

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Scientific name
Xerocomellus atropurpureus
Author
J.L. Frank, N. Siegel & C.F. Schwarz
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Boletales
Family
Boletaceae
Assessment status
Proposed
Proposed by
Noah Siegel
Comments etc.
Noah Siegel

Assessment Notes

Taxonomic notes

Xerocomellus atropurpureus was a ‘cryptic species’ hiding under the epithet Xerocomellus (Boletus) zelleri. It was recently described as a distinct species (Frank et al. 2020), and is far more common and widespread than X. zelleri.


Why suggested for a Global Red List Assessment?

Xerocomellus atropurpureus is a common and widespread bolete in western North America. It occurs in a wide variety of habitat types, from young to mature forests, associating with both conifers and hardwoods. No decline has been observed. We recommend it should be listed as Least Concern (LC).


Geographic range

Occurring in coastal and coast range forests from Santa Barbara County, California, USA, and from the southern Sierra Nevada in montane forests, north into southern British Columbia, Canada. Also in the northern Rocky Mountains in eastern Washington and Idaho.


Population and Trends

Population is widespread and stable across western North America.  Occurring in many different habitat types; from young to mature forest.

Population Trend: Stable


Habitat and Ecology

Ectomycorrhizal with both conifers, and occasionally oaks (Quercus spp.), in a wide variety of habitat types; especially common in northern Californian mixed evergreen forests and throughout the Pacific Northwest in coast to montane conifer forests.  Fruiting in fall and early winter, or occasionally in spring on the California and Oregon coast, and summer at higher elevations.


Threats

This species is common and widespread in a wide variety of habitats, and no threats have been observed.


Conservation Actions

None needed.


Research needed

None needed.


Use and Trade

This species is edible, and occasionally collected for food.

Food - human

Bibliography

Frank J.L., Siegel, N., Schwarz, C.F., Araki, B. and Vellinga, E.C. 2020. Xerocomellus (Boletaceae) in western North America. Fungal Systematics and
Evolution 6: 265–288

Siegel, N. and Schwarz, C. 2016. Mushrooms of the Redwood Coast: A Comprehensive Guide to the Fungi of Coastal Northern California. Ten Speed Press, Emeryville, CA. 602 pp.

iNaturalist. 2020. https://www.inaturalist.org/


Country occurrence

Regional Population and Trends

Country Trend Redlisted