Thaxterogaster oregonensis

Thaxterogaster oregonensis
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Cortinariaceae
Genus: Thaxterogaster
Species:
T. oregonensis
Binomial name
Thaxterogaster oregonensis
(A.H. Sm.) Niskanen & Liimat.
Thaxterogaster oregonensis
Mycological characteristics
Gills on hymenium
Cap is conical or convex
Hymenium is adnate
Stipe has a cortina
Spore print is reddish-brown
Ecology is mycorrhizal
Edibility is unknown

Thaxterogaster oregonensis, also known as Cortinarius oregonensis[1] and commonly known as the egg-yolk webcap,[2] is a species of mushroom in the family Cortinariaceae.

Description

The cap of Thaxterogaster oregonensis starts out light purple with an orangish center. As the mushroom gets older, the center becomes yellower and the rest of the cap becomes less purple.[2] It can be convex, conical, umbonate, or flat. It is about 2-4 centimeters in diameter.[3] The stipe is about 3-9 centimeters long and 4-10 millimeters wide. It can be purplish or grayish.[4] The gills are adnexed and start out purplish, becoming grayish and eventually brown.[2]

Habitat and ecology

Thaxterogaster oregonensis is found in forests.[3] It grows under conifers.[2]

References

  1. ^ "Index Fungorum - Names Record". www.indexfungorum.org. Retrieved 2025-11-07.
  2. ^ a b c d 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. 192. ISBN 9781941624197.
  3. ^ a b Gibson, Ian. "Cortinarius oregonensis". E-Flora BC: Electronic Atlas of the Flora of British Colombia.{{cite web}}: CS1 maint: url-status (link)
  4. ^ Adams, Shannon (December 25, 2020). "Cortinarius oregonensis". North American Cortinarius Collections. Archived from the original on June 6, 2023. Retrieved 2025-11-06.