Observation 23588: Boletus innixus Frost (Site ID) (Aureoboletus innixus)

When: 2009-07-26

Collection location: Luzerne Co., Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Could be B. auriporus.


Copyright © 2009 Dave in NE PA
Copyright © 2009 Dave in NE PA

Proposed Names

77% (2)
Recognized by sight: Bright yellow pore surface.
Based on chemical features: Cap surface dark red with KOH. KOH turns context dull reddish.
56% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
By: Dave W (Dave W)
2009-07-28 22:03:51 EDT (-0400)

auriporus works for me. I find these two (auriporus innixus) difficult to tell apart. KOH reactions are the same for the two.

I would go with
By: Noah Siegel (Noah)
2009-07-27 17:09:23 EDT (-0400)

B. auriporus. with white basal mycelium and the equal stipe with tapered base, innixus should have a swollen stalk with a tapered base and yellow mycelium.

I think
By: Dave W (Dave W)
2009-07-27 13:36:34 EDT (-0400)

the basal mycellium coating was whitish, or maybe a bit yellow. I’ll check the specimen once I get home tonight.

what color
By: Noah Siegel (Noah)
2009-07-27 08:08:54 EDT (-0400)

was the mycelium at the base of the stalk?