Observation 164338: Boletus

When: 2012-08-08

Collection location: Ragged Mountain Natural Area, Charlottesville, Virginia, USA [Click for map]

Who: dario.z (dario13)

No specimen available


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Proposed Names

29% (1)
Recognized by sight
28% (1)
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Okay, possibly a different point…
By: Dave W (Dave W)
2014-04-30 20:13:12 PDT (-0700)

about the reddening of worm holes. Good question, Phil. I see this on a number of the yellow-fleshed/blue-staining boletes.

No problem, Dario. maybe you’ll find this again.

By: dario.z (dario13)
2014-04-30 19:52:59 PDT (-0700)

I’m sorry that was a long time ago.

By: Phil Yeager (gunchky)
2014-04-30 19:09:38 PDT (-0700)

I’m referriong to is that some species of Boletus react to a maggot infestation by changing color at the point/points of infestation. Is this reaction due to enzymes which the “maggots” are secreting?

Several of the blue staining…
By: Dave W (Dave W)
2014-04-30 18:52:03 PDT (-0700)

reddish capped Boletus species have context that goes slowly to reddish-brown as the bluing fades. This trait seems to be under-reported.

Another thing
By: Phil Yeager (gunchky)
2014-04-30 18:32:47 PDT (-0700)

I noticed is what appears to be maggot holes staining orangish.

Good points, Phil.
By: Dave W (Dave W)
2014-04-30 18:25:25 PDT (-0700)

The paleness of the context is the main reason why I neither proposed nor mentioned B. pseudosensibilis, as well as the reason why I did mention miniato-olivaceus. However, I have found that the yellow context on Boletus species often fails to come through on my photos. For instance, many of my B. bicolor photos show context that appears almost white.

The lack of bluing on the cap surface is seen in the in-situ photo. Bluing on sensibilis occurs after the mushroom is handled.

Dario, do you recall the color of the freshly cut (unstained) interior context? Also, any odor noticed?

By: Phil Yeager (gunchky)
2014-04-30 17:29:34 PDT (-0700)

see any blue staining on the pileus, and the pileal context seems unusually white as oppossed to instantaneously staining blue. PErhaps the blue faded.

The stipe…
By: Dave W (Dave W)
2014-04-28 20:00:17 PDT (-0700)

looks smoother and more uniformly pale yellow than I expect to see in B. miniato-olivaceus. But maybe this is another species name to consider.

Created: 2014-04-28 18:58:28 PDT (-0700)
Last modified: 2014-04-28 20:16:41 PDT (-0700)
Viewed: 95 times, last viewed: 2018-02-07 18:04:51 PST (-0800)
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