Lactarius occidentalis

Lactarius occidentalis
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Russulales
Family: Russulaceae
Genus: Lactarius
Species:
L. occidentalis
Binomial name
Lactarius occidentalis

Lactarius occidentalis is a species of mushroom in the family Russulaceae. Its range extends from Alaska to Northern California.[1]

Description

The cap of Lactarius occidentalis ranges in color from olive to cinnamon, and is about 1-3 centimeters in diameter. It starts out convex and becomes flat and eventually depressed as the mushroom gets older.[2] The gills are tan or orangish in color. They are adnate.[3] The stipe is olive or orangish and about 2-6 centimeters long and 4-7 millimeters wide. The spore print is white.[2] This mushroom produces small amounts of white latex that dries yellowish.[3]

Habitat and ecology

Lactarius occidentalis is found under alder trees. It is mycorrhizal and fruits from late summer until fall.[1]

References

Lactarius occidentalis
Mycological characteristics
Gills on hymenium
Hymenium is adnate
Stipe is bare
Spore print is white
Ecology is mycorrhizal
Edibility is unknown
  1. ^ a b "Lactarius occidentalis". redlist.info. Retrieved 2025-12-18.
  2. ^ a b Siegel, Noah; Schwarz, Christian (September 1, 2024). Mushrooms of Cascadia: A Comprehensive Guide to Fungi of the Pacific Northwest. Humboldt County, CA: Backcountry Press. p. 252. ISBN 9781941624197.
  3. ^ a b Siegel, Noah; Mohatt, Kate; Trudell, Steve (October 14, 2025). Mushrooms of Alaska. Portland, OR: Timber Press. p. 135. ISBN 9781643263670.