Phaeocollybia fallax
Brittonia 9: 202. 1957.
Common Name: none
For description see Norvell & Exeter & 'California Mushrooms'.
Scattered to gregarious in soil under conifers, not uncommon, fruiting in fall in coastal forests from Marin County northward.
Unknown.
Phaeocollybia fallax is easily recognized by a glutinous olive-green cap, violet gills, and a two toned stipe (white to pale violet apex, orangish brown base). Two other phaeocollybias with olive-green caps, P. pseudofestiva and P. olivacea, occur in California. They differ from P. fallax in having young gills that are cream to yellowish buff, and from each other in spore size and cystidia features.
Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
Castellano, M.A., Cázares, E., Fondrick, B. & Dreisbach, T. (2003). Handbook to additional fungal species of special concern in the Northwest Forest Plan (Gen. Tech Rep. PNW-GTR-572). U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: Portland, OR. 144 p. (PDF)
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Norvell, L.L. & Exeter, R.L. (2009). Phaeocollybia of Pacific Northwest North America. US Department of Interior, BLM: Salem, OR. 229 p. (PDF)
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
Singer, R. (1940). Notes sur quelques Basidiomycetes. Rev. Mycol. 5: 3-13.
Smith, A.H. (1957). A contribution toward a monograph of Phaeocollybia. Brittonia 9: 195-217. (PDF)