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

Amanita magniverrucata Thiers & Ammirati

Search for another Species...

Scientific name
Amanita magniverrucata
Author
Thiers & Ammirati
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, Michael Wood

Assessment Notes

Justification

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

Population appears stable, and no decline has been noted. It should be listed as Least Concern (LC).


Taxonomic notes

Described from California, USA (Thiers & Ammirati 1982).


Why suggested for a Global Red List Assessment?

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

Population appears stable, and no decline has been noted. It should be listed as Least Concern (LC).


Geographic range

Coastal California, from San Diego County north into Mendocino County, and in the Sierra Nevada foothills; also in the southern California mountains, and the sky islands in Arizona. Reported from single collections from Oregon (Tulloss 2021), and Washington (Mycoportal 2021) but little information is available regarding this collections. Likely also in northern Baja California, Mexico.


Population and Trends

Population is widespread, and locally common. Occurring in young to mature forests, especially with oaks (Quercus spp.).  No decline has been noted.

Population Trend: Stable


Habitat and Ecology

Ectomycorrhizal with oaks (Quercus spp.), especially with Coast Live Oak (Quercus agrifolia) in southern and central California. Also with Bishop Pine (Pinus muricata) and possibly with other conifers. Occurring in young to mature forests.

Temperate Forest

Threats

Climate change; loss of precipitation in southern California.

Habitat shifting & alterationDroughts

Conservation Actions

No specific conservation actions is needed with regards to this species. Research population trends. Although no decline has been noted, a lot of the population occurs in areas with changing climate, and overall drying of habitat in southern California.


Research needed

Research population trends. Although no decline has been noted, a lot of the population occurs in areas with changing climate, and overall drying of habitat in southern California.


Use and Trade

None known.


Bibliography

iNaturalist. 2021. http://www.inaturalist.org

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

Thiers, H.D. and Ammirati, J.F. 1982. New species of Amanita from western North America. Mycotaxon 15: 155-166.

Tulloss RE. 2021. Amanita magniverrucata. in Tulloss RE, Yang ZL, eds. Amanitaceae studies. [ http://www.amanitaceae.org?Amanita+magniverrucata ]. accessed January 20, 2021.


Country occurrence

Regional Population and Trends

Country Trend Redlisted