Gastroboletus turbinatus (Snell) A.H. Smith & Singer
Brittonia 11: 208. 1959.

Common Name: none

Synonym: Boletus turbinatus Snell

• Habitat

  Scattered to gregarious under conifers in the montaine regions of the state. Also rarely under live oaks in coastal California.

• Edibility

  Unknown.

• Comments

  The blue staining of the context of Gastroboletus turbinatus separates this species from other California species of Gastroboletus except Gastroboletus xerocomoides. Macroscopically these two can be differentiated by cap color: Gastroboletus turbinatus has a red to reddish brown cap, whereas Gastroboletus xerocomoides has a brown to olive brown or yellow brown cap. Microscopically Gastroboletus turbinatus lacks the truncate spores of Gastroboletus xerocomoides.

• References

  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.
  Smith, A.H. & Singer, R. (1959). Studies on Secotiaceous Fungi IV. Gastroboletus, Truncocolumella, and Chamonixia. Brittonia 11: 205-223.
  Snell, W.H. (1936). Notes on Boletes. IV. Mycologia 28(1): 13-23.
  Thiers, H.D. (1975). California Mushrooms--A Field Guide to the Boletes. Hafner Press: New York, NY. 261 p.
  Thiers, H.D. & Trappe, J.M. (1969). Studies in the genus Gastroboletus. Brittonia 21: 244-254.

• Other Descriptions and Photos
  • The Boletes of California: Gastroboletus turbinatus (D)
  • Handbook to Additional Fungal Species of Special Concern in the Northwest Forest Plan: Gastroboletus turbinatus (D & CP)
  • Michael Beug: Gastroboletus turbinatus (CP)
  • Arora (1986): p. 544 (D), p. 545 (P)
  • Miller: sp. 277 (D & CP)
  • Miller & Miller: p. 393 (D & CP)
  • Smith & Weber: wp. 266 (D & CP)
  • Tylutki (1987): p. 35 (D & P)
  
  

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