Amanita silvicola
Pap. Mich. Acad. Sci. 5: 123. 1926.
Common Name: none
For descriptions see Amanitaceae.org & Kauffman.
Solitary to gregarious in coniferous forests, especially western hemlock. Common throughout most of north coast, uncommon elsewhere.
Likely toxic.
Amanita silvicola can be distinguished by its white basidiocarp, the truncate bulb at the base of the stipe, the fragile, usually evanescent, annulus, the flocculent to matted cap surfaces, and by the absence of a distinctive taste or odor. Amanita smithiana is also pure white, but has larger spores, clamp connections, and an unpleasant odor. Amanita magniverrucata has conspicuous warts on the pileus, and Amanita ocreata has a cap with creamy to pinkish tones on the disc and a strongly developed, free-margined volva.
Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
Kauffman, C.H. (1925). The fungus flora of Mt. Hood, with some new species. Papers of the Michigan Academy of Sciences. 5: 115-148. (PDF)
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
Thiers, H.D. (1982). The Agaricales (Gilled Fungi) of California. 1. Amanitaceae. Mad River Press: Eureka, CA. 53 p.
