Inocybe citrifolia M.G. Wood &
Photo: Part of the type collection (mgw-521)
Common Name: none
Cap 2-4 cm broad; brownish yellow to brownish orange, the disk darker and the margin paler; umbonate, becoming ± plane at maturity; distinctly radially fibrillose; oder spermatic; taste mild to slightly bitter or spermatic.
Gills yellowish, becoming darker from spores with age; with multiple series of lamellulae.
Stem yellowish, 3-7 mm broad x 45-70 mm long; equal or enlarged towards base which is typically sub-bulbous to bulbous; longitudinally striate and minutely hairy.
Spores 11.4 x 5.3-5.7 µm, smooth, brown in KOH.
Scattered, to gregarious under tanbark oak (Lithocarpus densiflorus) with Douglas fir (Pseudotsuga menziesii) nearby; January.
Unknown.
This distinctively colored Inocybe is known only from a few locations in San Mateo, Marin, and Sonoma Counties.
Nishida, F.H. (1987). The Genus Inocybe in Southern California (Agaricales, Basidiomycetes). Masters Thesis. California State University, Los Angeles: Los Angeles, CA. 315 p.
Nishida, F.H. (1988). New species of Inocybe from Southern California. Mycotaxon 33: 213-222.
Nishida, F.H. (1989). Key to the Species of Inocybe in California. Mycotaxon 34(1): 181-196.
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
