Boletus barrowsii
Mycotaxon 3(2): 262. 1976.
Common Name: none
For description see Thiers.
In California Boletus barrowsii is usually associated with oak, typically fruiting in the fall. Not common, but can be locally abundant. B. barrowsii can be common in the southwestern US, where it is usually associated with yellow pine (Pinus ponderosa).
Edible and choice.
Boletus barrowsii is easy to identify with the following characteristics: pale coloration, white tubes that are 'stuffed' when young, reticulated stipe, mild taste, lack of bruising reactions and typical (in California) association with oak.
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Arora, D. (2008). California Porcini: Three New Taxa, Observations on Their Harvest, and the Tragedy of No Commons. Economic Botany 62(3): 356-375.
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.
Dentinger, B.T., Ammirati, J.F., Both, E.E., Desjardin, D.E., Halling, R.E., Henkel, T.W., Moreau, P.-A. , Nagasawa, E., Soytong, K., Taylor, A.F., Watling, R., Moncalvo, J.-M. & McLaughlin, D.J. (2010). Molecular phylogenetics of porcini mushrooms (Boletus section Boletus). Molecular Phylogenetics and Evolution 57(3): 1276-1292.
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
Thiers, H.D. (1976). Boletes of the Southwestern United States. Mycotaxon 3(2): 261-273. (Protologue)