Observation 216043: Butyriboletus D. Arora & J.L. Frank
When: 2015-09-13
No herbarium specimen
0 Sequences

Proposed Names

-17% (3)
Recognized by sight: red cap with narrow band of sterile tissue, yellow pores that blue then turn brown, stem that is yellow and reticulated over top half and red on lower half, pale yellow context that reddens where bug eaten, yellow mycelium, on ground in mixed woods
Used references: NA Boletes by BRB
Based on chemical features: KOH rusty red on cap and orange on flesh
82% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks Noah
By: Terri Clements/Donna Fulton (pinonbistro)
2017-02-16 13:00:33 PST (-0800)
This observation
By: Noah Siegel (Noah)
2017-02-16 08:07:29 PST (-0800)

is likely Caloboletus peckii. http://mushroomobserver.org/246697?q=2IWV

It has a different cap texture (almost like fine suede leather), which fades graying in age, different reticulation and a reported bitter taste.

There is a lot of uncertainty surrounding the identification of this once common species. I believe it was incorrectly placed into Butyriboletus.


By: Terri Clements/Donna Fulton (pinonbistro)
2017-02-16 07:45:29 PST (-0800)

This seemed like a good match according to BRB.

By: I. G. Safonov (IGSafonov)
2015-11-18 16:58:03 PST (-0800)

For details of this transfer, see a recent publication at http://www.mapress.com/...

Hi Igor
By: Terri Clements/Donna Fulton (pinonbistro)
2015-11-15 06:55:06 PST (-0800)

Is this the preferred name for Caloboletus peckii? For some reason there seems to be no record of Butyriboletus peckii on Mycobank. Caloboletus peckii is listed as the current name.


Thanks, Dave
By: Terri Clements/Donna Fulton (pinonbistro)
2015-09-14 09:47:19 PDT (-0700)

It was pretty exciting when I realized what it might be.


Nice find.
By: Dave W (Dave W)
2015-09-14 06:44:23 PDT (-0700)

As described in NA Boletes, peckii looks like a good possibility.

Created: 2015-09-13 16:10:41 PDT (-0700)
Last modified: 2017-02-16 15:26:56 PST (-0800)
Viewed: 217 times, last viewed: 2017-11-07 03:36:19 PST (-0800)
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