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

Cantharellus roseocanus (Redhead, Norvell & Danell) Redhead, Norvell & Moncalvo

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Scientific name
Cantharellus roseocanus
Author
(Redhead, Norvell & Danell) Redhead, Norvell & Moncalvo
Common names
Rainbow Chanterelle
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Cantharellales
Family
Cantharellaceae
Assessment status
Assessed
Preliminary Category
LC
Proposed by
Noah Siegel
Assessors
Noah Siegel
Comments etc.
James Westrip

Assessment Notes

Justification

Cantharellus roseocanus is a widespread chanterelle in the Pacific Northwest, northern California and across the mountain west.

Being a highly prized edible species, it is sought after by many mushroom hunters and foragers. No decline has been observed due to harvesting, and population appears stable throughout the range.

This species should be listed as Least Concern (LC)


Taxonomic notes

Cantharellus roseocanus belongs to a complex of western North American golden chanterelle speceis, which were generally recorded as C. cibarius (Thiers 1985, Arora 1986); then described as a variety of C. cibarius, var. roseocanus (Redhead et al. 1997), finally elevated to species rank (Redhead 2012).

For this assessment, we are considering C. roseocanus to be a single species across the Pacific states and mountain west. Additional genetic studies need to be done comparing Pacific Coast collections with Rocky Mountain collections, as macro-morphological differences do occur with these collections. Records from Mexico (iNaturalist 2021) appear to represent a distinct species, and are not part of this assessment.


Why suggested for a Global Red List Assessment?

Cantharellus roseocanus is a widespread chanterelle in the Pacific Northwest, northern California and across the mountain west.

Being a highly prized edible species, it is sought after by many mushroom hunters and foragers. No decline has been observed due to harvesting, and population appears stable throughout the range.

This species should be listed as Least Concern (LC)


Geographic range

Known from the coastal northern California, USA, and more rarely from the Sierra Nevada mountains in California, occasional north through the Cascade Mountains into Washington, and common in coastal spruce forest into southeast Alaska. Widespread and very common through the Rocky Mountains; from Canada south into the ‘sky islands’ of Arizona and New Mexico.


Population and Trends

Population is widespread, and population appears stable. No decline has been documented.

Population Trend: Stable


Habitat and Ecology

Ectomycorrhizal with conifers. Most populations are with spruce; Picea sitchensis in coastal locations and Picea engelmannii in montane locations, but also with Bishop Pine (Pinus muricata) in northern California, and in mixed pine-fir (Pinus-Abies) forests in the California mountains. Fruiting year round in many coastal locations, with the primary flush in mid to late summer, or early fall; often in late summer into fall in the Cascade Range, and in summer in the Rocky Mountains.

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. Additional genetic research into population subgroups; ie. comparing Pacific Coast collections with Rocky Mountain collections, and collections with pine in California.


Research needed

Additional genetic research into population subgroups; ie. comparing Pacific Coast collections with Rocky Mountain collections, and collections with pine in California.

Taxonomy

Use and Trade

Cantharellus roseocanus is a highly prized edible species, and is commonly collected, even commercially, across its range.

Food - human

Bibliography

Foltz, M.J., Perez, K.E. and Volk, T.J. 2013. Molecular phylogeny and morphology reveal three new species of Cantharellus within 20 m of one another in western Wisconsin, USA. Mycologia 105(2): 447-461.

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

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

Redhead, S. A. 2012. Nomenclatural Novelties. Index Fungorum 5: 1.

Redhead, S.A., Norvell, L. and Danell, E. 1997. Cantharellus formosus and the pacific golden chanterelle harvest in western North America. Mycotaxon 65: 285-322.?

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


Country occurrence

Regional Population and Trends

Country Trend Redlisted