Butyriboletus abieticola (Thiers) D. Arora & J.L. Frank
Mycologia 106: 466. 2014.

Common Name: butter bolete

Synonym: Boletus abieticola Thiers

• Description

  For description see Thiers, Siegel & Schwarz, & 'California Mushrooms'.

• Habitat

  Solitary to scattered in soil under red fir and grand fir; not uncommon, fruiting in the fall above 1500 m elevation in the Cascade Ranges and Sierra Nevada.

• Edibility

  Edible and excellent.

• Comments

  Butyriboletus abieticola can be distinguished by its appressed-fibrillose to fibrillose-scaly, greyish pink cap that is areolate in age, a reticulate stipe, and blue staining pores.

• References

  Arora, D. & Frank, J.L. (2014). Clarifying the butter Boletes: a new genus, Butyriboletus, is established to accommodate Boletus sect. Appendiculati, and six new species are described. Mycologia 106(3): 464-480.
  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.
  Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
  Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
  Thiers, H.D. (1975). California Mushrooms—A Field Guide to the Boletes. Hafner Press: New York, NY. 261 p. (WWW) (Protologue)

• Other Descriptions and Photos
  Main Photo
  • Michael Wood: Butyriboletus abieticola (CP)
  • Dimitar Bojantchev: Butyriboletus abieticola (CP
  • Boletes of California: Butyriboletus abieticola (D)
  • Mushroom Observer: Butyriboletus abieticola (CP)
  • Mushroom Hobby: Boletus abieticola (CP)
  
  

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