Page author: Olivia Filialuna
Tricholoma aurantio-olivaceum

Habitat: Conifer forests, especially with Douglas-fir

Conservation Status: Not of concern

Identification Notes:

Cap: 1-4 cm wide, obtusely conic when young, becoming broadly convex to nearly plane, with a low prominent umbo; surface dry, appressed-fibrillose, occasionally minutely squamulose or wooly on the disc when young; golden orange-yellow with rusty orange stains over the disc and yellowish tan on the margin at first, soon becoming duller and yellowish to orangish brown to light brown with brown to dark brown spots and stains; margin inrolled at first, expanding slightly and then remaining down-turned well into maturity. Flesh: whitish when young, becoming buff and finally grayish brown; odor not distinctive; taste mild or slowly acrid. Gills: emarginate to adnexed, narrow, close to subdistant; white or buff when young, gradually spotting light brown or olive-brown to dark brown; with one or two tiers of lamellulae. Stalk: 4-8 cm long, 3-7 mm thick, nearly equal or tapered downward and sometimes with a rooting base, stuffed or hollow; covered with orange to rusty orange fibrils or granules over a cream to buff background, fibrils becoming brown in age; sometimes beaded with ochraceous orange droplets at the apex.

Sources: Bessette, Alan E., Arleen R. Bessette, William C. Roody, and Steven A. Trudell. Trichoolomas of North America. Austin, University of Texan Press, 2013.

Accepted Name:
Tricholoma aurantio-olivaceum A.H. Sm.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Tricholoma aurantio-olivaceum in the Consortium of Pacific Northwest Herbaria database.

CalPhotos: Tricholoma aurantio-olivaceum photos.

0 photographs:
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