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A club member, Chandler Wiegand brought this in for ID tonight. He had mentioned it and created an observation for it last year. has a bright yellow, powdery cap which rubbed off on the paper towel it was brought in with. The context is yellow, mildly bluing, the pores dark red-brown and in contrast to the description on BRB, very thin. As in the description, the stalk tapers. Odor is non distinctive, but not completely free of the curry aroma associated with B. subvelutipes. The abundant mycelium in the ground is bright yellow. Referred to in BRB as Boletus hemichrysus. Neither Boletus hemichrysus or Buchwaldoboletus sphaerocephalus is in GenBank.

Note added 1/1/2014:

Species Lists


Proposed Names

29% (1)
Used references: BRB p. 117 and p. 295
61% (2)
Recognized by sight: “Yellow dust” on cap and reddish pores indicate Buchwaldoboletus hemichrysus.
Most likely not the same as Buchwaldoboletus sphaerocephalus, which has a glabrous cap and somewhat different habitat.

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= Observer’s choice
= Current consensus


Add Comment
By: Martin Livezey (MLivezey)
2014-07-31 17:44:48 MST (-0700)

I stand corrected! Your suggestion is consistent with BRB and with the paper I listed in the link above. Don’t know how I got pulled off track. Thanks for your attention!