• Proposed
  • Under Assessment
  • Preliminary Assessed
  • LCAssessed
  • 5Published

Amanita augusta Bojantchev & R.M. Davis

Search for another Species...

Scientific name
Amanita augusta
Author
Bojantchev & R.M. Davis
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Amanitaceae
Assessment status
Assessed
Preliminary Category
LC
Proposed by
Noah Siegel
Assessors
Noah Siegel
Comments etc.
James Westrip

Assessment Notes

Justification

Amanita augusta is a common and widespread species in western North America, with no recorded decline.

It should be listed as Least Concern (LC).


Taxonomic notes

The western North American Amanita augusta was long referred to by the European name Amanita aspera Fries (Thiers 1982, Arora 1986), and later Amanita franchetii (Boudier) Fayod, before being described as a distinct species (Bojantchev & Davis 2013).


Why suggested for a Global Red List Assessment?

Amanita augusta is a common and widespread species in western North America.

It should be listed as Least Concern (LC).


Geographic range

Widespread in the Pacific States of North America; very common in coastal California, north into southeast Alaska, occasional in the Sierra Nevada and Cascade Range in California and Oregon, more common in lower and mid elevations in the Washington Cascades, and occasional in the northern Rocky Mountains.


Population and Trends

Population is widespread, and locally, is a very common species. Occurring in young to mature forests of many types. No decline has been noted.

Population Trend: Stable


Habitat and Ecology

Ectomycorrhizal with both conifers and hardwoods; especially pine (Pinus spp.), spruce (Picea), Douglas-fir (Pseudotsuga menziesii) and oak (Quercus spp.). Occurring in young to mature forests, fruiting in late summer and fall in the north, into spring in the south.

Temperate Forest

Threats

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


Conservation Actions

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


Research needed

No specific research is needed with regards to this species.


Use and Trade

None known.


Bibliography

Arora, D. 1986. Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.

Bojantchev, D. and Davis, M. 2013. Amanita augusta, a new species from California and the Pacific Northwest. North American Fungi 8(5): 1-11.

Desjardin, D.E., Wood, M.G. and Stevens, F.A. 2015. California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.

Mushroom Observer. 2021. http://www.mushroomobserver.org

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

Thiers, H. D. 1982. The Agaricales (Gilled Fungi) of California. 1. Amanitaceae. Mad River Press: Eureka, CA. 53 p.


Country occurrence

Regional Population and Trends

Country Trend Redlisted