Observation 132728: Boletus edulis group

When: 2011-08-21

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

Who: Phil Yeager (gunchky)

No specimen available

Terrestrial in pine woods.

Proposed Names

29% (1)
Recognized by sight
61% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Phil Yeager (gunchky)
2013-05-02 20:15:45 CDT (-0500)

Thanks for clarifying this. Phil

Boletus subcaerulescens
By: walt sturgeon (Mycowalt)
2013-05-02 19:42:12 CDT (-0500)

was previously Boletus edulis var. subcaerulescens.

The point
By: Phil Yeager (gunchky)
2013-05-02 19:33:23 CDT (-0500)

I was referring to is that the specimens were handled quite frequently in the field, and upon being brought to my garage they were again checked for any color changes. No bluing occured either in the field or at home. As for B. subcaerulescens being broadly placed in Boletus edulis group, I don’t know. I’d have to do a lot of research to find all the species listed in that group, or secure a professional opinion. Next time I find this, I’ll post more info.

I’m not disputing…
By: Dave W (Dave W)
2013-05-02 06:59:41 CDT (-0500)

what Walt has proposed. In fact, I think that, viewed very broadly, B. subcaerulescens may be considered a species within the edulis group.

My collections of subcaerulescens have showed variable blue to grayish-blue bruising. Sometimes on the pore surface, sometimes where the cap context attaches to the tubes, and for some young buttons no staining at all. I think I also remember one specimen bluing slightly on the stipe. Hope you find more of these Phil!

By: Phil Yeager (gunchky)
2013-05-01 19:42:37 CDT (-0500)

was found in predominately two-needle pines with some white pine nearby. No scots pine or spruce in the vicinity. Also there was no bluish gray staining that would possibly indicate B. subcaerulescens. Like to find that species here to help establish distribution limits. I’ll try to find this again this year, and run some chemical tests. Going with Walt on this one.

This reminds me of…
By: Dave W (Dave W)
2013-05-01 11:26:48 CDT (-0500)

some collections of B. subcaerulescens I have made, in particular the raised white reticulations on the brownish stipe. My one dependable spot for this type seems to be connected to a single pine tree in an otherwise mostly oak forest.

Created: 2013-04-30 20:24:43 CDT (-0500)
Last modified: 2016-09-27 21:09:29 CDT (-0500)
Viewed: 93 times, last viewed: 2017-06-15 22:08:18 CDT (-0500)
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