Amanita gemmata (Fries) Bertillon
Essai Crypt. Exot. 3: 496. 1866.

Common Name: none

• Description

  For description see Amanitaceae.org & 'California Mushrooms'.

• Habitat

  Common in conifer and hardwood-conifer forests throughout California.

• Edibility

  Toxic.

• Comments

  This represents a complex of species in North America, none of which may be the true Amanita gemmata of Europe. Much more data/reaearch is needed to clarify this situation.

• References

  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.
  Arora, D. (1986). Mushrooms Demystified. Ten Speed Press: Berkeley, CA. 959 p.
  Breitenbach, J. & Kränzlin, F. (1995). Fungi of Switzerland. Volume 4: Agarics (2nd Part). Entolomataceae, Pluteaceae, Amanitaceae, Agaricaceae, Coprinaceae, Strophariaceae. Verlag Mykologia: Luzern, Switzerland. 368 p.
  Bunyard, B.A. & Justice, J. (2020). Amanitas of North America. The Fungi Press: Batavia, IL. 336 p.
  Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
  Jenkins, D.T. (1977). A Taxonomic and Nomenclatural Study of the Genus Amanita and Section Amanita for North America. J. Cramer: Vaduz. 126 p.
  Jenkins, D.T. (1986). Amanita of North America. Mad River Press: Eureka, CA. 197 p.
  Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
  Smith, A.H. (1949). Mushrooms in their Natural Habitats. Sawyer's Inc: Portland, OR. 626 p. (PDF)
  Thiers, Harry D. (1982). The Agaricales (Gilled Fungi) of California. 1. Amanitaceae. Mad River Press: Eureka, CA. 53 p.

• Other Descriptions and Photos
  Main Photo
  • Michael Wood: Amanita gemmata (CP)
  • Michael Wood: Amanita muscaria & Amanita gemmata (CP) — A. muscaria & A. gemmata growing side-by-side
  • Mushroom Observer: Amanita gemmata (CP)
  • MushroomExpert.com: Amanita gemmata (D & CP)
  • Arora (1986): p. 281 (D & P)
  • Arora (1991): p. 79 (d & CP)
  • Lincoff: p. 537 (D), pl. 128-129 (CP)
  • McKenny et al.: p 34. (D), p. 35 (CP)
  • Miller: p. 32 (D)
  • Miller & Miller: p. 36 (D & CP)
  • Orr & Orr: p. 202 (D)
  • Thiers (1982): p. 26 (D)
  
  

  (D=Description; I=Illustration; P=Photo; CP=Color Photo)