Observation 138783: Boletus L.
When: 2013-07-04
No herbarium specimen

Notes: Overall yellow color. Context pale yellow. No staining or bruising, except for maybe a little darkening on the pores. Upper stipe finely reticulate; difficult to see, even with a hand-lens. Visible using zoom on stipe photo.

KOH no reaction on stipe, cap, or context. KOH dark orange on pore surface.
FeSO4 crystals dark green on pore surface, with surrounding pore surface becoming dakr orange.

Looked for cystidia. Searched along a slice of tube and found only one cystidium which is partly buried in the surrounding context. Smashed the material on the slide, but found no additional cystidia. Seems reasonable to me to suppose that there are few cystidia on this specimen. Spores of fairly uniform length, 10-12 mu.

Odor of fresh specimen pleasant, sweetish. Taste mild.

Single specimen growing in open area with oaks.

Specimen dehydrated and is available for study.

Proposed Names

58% (1)
Eye3 Eyes3
Recognized by sight
29% (1)
Recognized by sight
Used references: NA Big Bolete Book reports northern distribution of this species as North Carolina. But I can find no other match for this large distinctive bolete.
4% (2)
Recognized by sight: Fineness of reticulation on upper stipe is not typical for R. ornatipes. But I think this possibility should be considered. Found in an area where R. ornatipes has been collected.
29% (1)
Recognized by sight: In the pastI have IDed more typically-colored specimens of B. auripes from this location.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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I had not considered B. auripes.
By: Dave W (Dave W)
2013-07-06 12:31:02 PDT (-0700)

But judging form the description of this species, it looks like a possibility that should not be ruled out.

The yellows were quite vivid. Stipe showed just a hint of red flush.

Dave,
By: I. G. Safonov (IGSafonov)
2013-07-06 12:20:47 PDT (-0700)

Have you considered B. auripes as a farfetched possibility? I’ve seen mature specimens of this bolete being uniformly yellow all over.

Created: 2013-07-06 08:38:30 PDT (-0700)
Last modified: 2013-07-09 10:36:21 PDT (-0700)
Viewed: 44 times, last viewed: 2016-09-05 19:25:37 PDT (-0700)
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