Strobilurus trullisatus
Mycotaxon 9: 179. 1979.
Photo: Showing typical growth on Douglas fir cones.
Common Name: none
Synonyms: Strobilurus kemptonae V.L. Wells; Gymnopus trullisatus Murrill
Cap 0.4-1.7 cm broad, convex, expanding to nearly plane and slightly depressed; surface smooth to faintly wrinkled, pallid brown at the disc shading to a pale pinkish, striate margin; flesh thin and white.
Gills adnate to adnexed, close, white to pinkish-tan.
Stipe 1.5-4.5 cm tall, 0.1-0.2 cm broad, white, subtomentose above, yellowish-brown and pubescent below, orange-brown mycelium at the base; veil absent.
Spores 3.5-6 x 2-3 µm, elliptical, smooth, nonamyloid. Spore print white.
Solitary to grouped on decaying Douglas fir cones; from late summer in areas of fog drip to mid-winter.
Unknown. Too small to be of any culinary value.
Strobilurus trullisatus is one of relatively small number of mushrooms in our area that live on conifer cones. It is recognized by a pale-colored cap with pinkish tones, and a yellowish-brown stipe base. Baeospora myosura also grows on Douglas fir cones, but has a somewhat darker cap, much closer gills, and a distinctly hairy stipe base. A related species, Strobilurus occidentalis, occurs on spruce cones. Strobilurus kemptonae is an older name for this mushroom.
Desjardin, Dennis E. (1985). The Marasmioid Fungi of California. Masters Thesis. San Francisco State University: San Francisco, CA. 287 p.
Desjardin, Dennis E. (1987). The Agaricales (Gilled Fungi) of California. 7. Tricholomataceae I. Marasmioid Fungi. Mad River Press: Eureka, CA. 100 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Lennox, J.W. (1979). Collybioid genera in the Pacific Northwest. Mycotaxon 9(1): 117-231.
Murrill, W.A. (1907). North American Flora: (Agaricales) Polyporaceae-Agaricaceae. 9(5): 297-374. (Protologue)
