Cystinarius rubiginosus

Cystinarius rubiginosus
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Cortinariaceae
Genus:	Cystinarius
Species:	C. rubiginosus
Binomial name
Cystinarius rubiginosus (Ammirati, Bojantchev, Niskanen & Liimat.) Liimat. & Niskanen
Synonyms
Cortinarius rubiginosusAmmirati, Bojantchev, Niskanen & Liimat

Cystinarius rubiginosus Mycological characteristics
	Gills on hymenium
	Cap is campanulate or flat
	Hymenium is adnate
	Stipe has a cortina
	Spore print is reddish-brown
	Ecology is mycorrhizal
	Edibility is unknown

Cystinarius rubiginosus, also known as Cortinarius rubiginosus, is a species of mushroom in the family Cortinariaceae.

Description

The cap of Cystinarius rubiginosus starts out campanulate or rounded. As the mushroom matures, it becomes convex or flat. It is about 3-9 centimeters in diameter, and is beige to orangish brown. ^[1] The gills are adnate and start out beige, before becoming orangish or brownish as the mushroom gets older. ^[2] The stipe is about 5-8 centimeters long, 1-3 centimeters wide, and orangish. ^[3] A cortina is present, and the spore print is rusty brown. While some classify it under the genus Cortinarius , it has cystidia, leading others to classify it under the genus Cystinarius. ^[1]

Habitat and ecology

Cystinarius rubiginosus is found in Western North America, from California to Alaska. ^[2] It is most often found in coastal spruce forests. ^[1] While it usually grows with sitka spruce, it sometimes grows with other conifers, as well as tanoak. ^[2]

References

1. 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. 188. ISBN   9781941624197.
2. Adams, Shannon (2022-01-02). "Cortinarius rubiginosus". North American Cortinarius Collections. Archived from the original on March 22, 2023. Retrieved 2025-11-03.
3. Stevens, Michael Wood & Fred. "California Fungi: Cortinarius rubiginosus". www.mykoweb.com. Retrieved 2025-11-03.