Cortinarius glaucopus
Nat. Arr. Brit. Pl. 1: 629. 1821.
Common Name: none
For descriptions see Kauffman, Arora, Siegel & Schwarz, & 'California Mushrooms'.
Scattered to gregarious or cespitose in soil in mixed hardwood-conifer forests, often with Douglas fir, live oak, tanbark oak; common, fruiting from fall through mid-winter, widely distributed.
Unknown.
Cortinarius glaucopus represents a complex of closely related species in California, as evidenced by the variable pigmentation of the cap margin, gills, and stipe, which typically include violet, blue, or olive shades. Molecular data shows at least five species in this group in California. Our most common form has a viscid, innately fibrillose, brown to olive-brown cap with violet to blue margin, violet to blue young gills, and a violet to blue stipe with a bulbous base. It is common in live oak woodlands but also occurs with Douglas fir and tanbark oak in northern coastal forests and with spruce farther north. Numerous poorly known, viscid-capped, marginate-bulbed Cortinarius species are known in California, differing in the color of the cap, young gills, stipe apex, and context. Those with violet cap, gills, and stipe have been referred to the Cortinarius sodagnitus group; those with yellow cap and gills and violet context to the Cortinarius cedretorum group; and those with olive-brown cap, green to olive gills, and bluish olive stipe to the Cortinarius scaurus group.
Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
Breitenbach, J. & Kränzlin, F. (2000). Fungi of Switzerland. Volume 5: Agarics (3rd Part). Cortinariaceae. Verlag Mykologia: Luzern, Switzerland. 338 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Kauffman, C.H. (1924). Cortinarius. N. Am. Flora 10(5): 282-348. (PDF)
Knudsen, H. & Vesterholt, J. ed. (2008). Funga Nordica: Agaricoid, boletoid and cyphelloid genera. Nordsvamp: Copenhagen, Denmark. 965 p.
Knudsen, H. & Vesterholt, J. ed. (2012). Funga Nordica: Agaricoid, boletoid, clavarioid, cyphelloid and gastroid genera. Vol. 2. Nordsvamp: Copenhagen, Denmark. 572 p.
Liimatainen, K., Niskanen, T., Dima, B., Kytövuori, I., Ammirati, J.F. & Frøslev, T.G. (2014). The largest type study of Agaricales species to date: bringing identification and nomenclature of Phlegmacium (Cortinarius) into the DNA era. Persoonia 33(1): 98-140.
Murrill, W.A. (1916). North American Flora: (Agaricales) Polyporaceae-Agaricaceae. 9(5): 297-374.
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
