Boletus calopus var. frustosus (Snell & Dick) Miller & Watling
Notes Roy. Botan. Garden Edinburgh 28:322. 1968.

Common Name: none

Synonym: Boletus frustosus Snell & Dick

• References

  Bessette, A.E., Roody, W.C. & Bessette, A.R. (2000). North American Boletes: A Color Guide to the Fleshy Pored Mushrooms. Syracuse University Press: Syracuse, NY. 400 p.
  Thiers, H. D. (1975). California Mushrooms—A Field Guide to the Boletes. Hafner Press: New York, NY. 261 p. (WWW)

• Other Descriptions and Photos
  • Nathan Wilson: Boletus calopus var. frustosus (CP)
  • Michael Wood: Boletus calopus var. frustosus (CP)
  • Michael Wood: Boletus calopus var. frustosus (CP)
  • Michael Wood: Boletus calopus var. frustosus (CP) — closeup of pores and reticulated stipe
  • Boletes of California: Boletus calopus var. frustosus (D)
  • Beverly Hackett: Boletus calopus var. frustosus (I)
  • Mushroom Hobby: Boletus calopus var. frustosus (D & CP)
  • Boleslaw Kuznik — Hunting for Mushrooms: Boletus calopus (D)
  • Mushroom Observer: Boletus calopus (CP)
  • Arora (1986): p. 523 (D)
  • Miller: sp. 312 (D)
  • Orr & Orr: p. 107 (D)
  • Smith (1975): sp. 42 (D & CP)
  • Tylutki (1987): p. 23 (D & P)
  
  

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