Observation 106350: Retiboletus griseus (Frost) Manfr. Binder & Bresinsky
When: 2012-08-20
No herbarium specimen

Notes: Under pine is white sand beside paved trail. Cap dark brown, stipe pale with prominent brown reticulation, stipe section is yellow at base. Pore layer dull white slowly staining pale brown on bruising.

Proposed Names

91% (2)
Recognized by sight: Taste should not be bitter, if it’s R. griseus.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks I.G. and Dave W
By: Martin Livezey (MLivezey)
2012-08-21 19:05:45 PDT (-0700)

I had noticed the orange stains on the stipe, but not really noted it as distinctive. Thanks!

R-b. griseus
By: I. G. Safonov (IGSafonov)
2012-08-21 13:53:05 PDT (-0700)

Yep, I am finding these now under pine in the NJ pine-oak barrens. Some of these have red-staining stipes. I think this might be a subspecies of R-b. griseus because of it’s association with conifers and distribution in the acidic sandy soil of coastal plain. The regular griseus, which I have collected before, grows stricly under hardwoods, as reported in B-R-B.

Created: 2012-08-21 12:53:55 PDT (-0700)
Last modified: 2012-08-22 00:11:00 PDT (-0700)
Viewed: 73 times, last viewed: 2017-06-13 19:37:28 PDT (-0700)
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