Entoloma vernum
Svensk bot. Tidskr. 31: 193. 1937.
Common Name: none
Synonym: Nolanea verna var. isodiametica Largent
For descriptions see Largent & 'California Mushrooms'.
Solitary to scattered in humus or mossy soil under montane conifers; common, fruiting in spring soon after snowmelt in the Sierra Nevada and Cascade Ranges.
Unknown.
Entoloma vernum can be recognized by its dark grayish brown hygrophanous cap and fibrillose stipe and spring time montane fruiting. It could be confused with E. holoconiotum, also found in the mountains after snowmelt, but the latter has a light yellowish brown to straw-colored, acutely conical cap, usually longer, yellow to straw-colored stipe. Collections of E. vernum from California and Oregon differ slightly in spore morphology from European material and have been given varietal status under the name Nolanea, as N. verna var. isodiametrica. Because the latter has not been formally transferred to Entoloma, it is referred to here simply as E. vernum.
Ammirati, J.F., Traquair, J.A. & Horgen, P.A. (1985). Poisonous Mushrooms of the Northern United States and Canada. University of Minnesota Press: Minneapolis, MN. 396 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Largent, D.L. (1994). Entolomatoid Fungi of the Western United States and Alaska. Mad River Press: Eureka, CA. 516 p.
Noordeloos, M.E. (1992). Entoloma s.l. (Funghi Europaei, vol. 5). Giovanna Biella: Saronno. 760 p.
Noordeloos, M.E. (2004). Entoloma s.l. Supplement (Funghi Europaei, vol. 5A). Ediziona Candusso: Alassio. 618 p.