Notes:
Growing in mixed woods. Caps up to 9.7 cm across surface, somewhat velvety when young, becoming pitted in age.
Pores and flesh bruise blue-green.
Did not get a lot of spores to drop but they appeared to be brown to olive brown.
Spores ~ 11.9-14.4 X 4.0-5.0 microns, subfusoid.
I"m only familiar enough with these red and yellow, blue staining Boletes to get quickly frustrated. I’m hoping someone like Noah or I G will come to my rescue.

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DNA sequencing results and discussion
By: I. G. Safonov (IGSafonov)
2018-01-25 17:13:56 PST (-0800)

A clean and contiguous TEF-1-alpha sequence of 607 bps (between and including EF1-983F and EF1-1567R primers) was obtained from this collection. There is a single ambiguous character, a “Y”.
Comparison of this sequence with that of the confirmed collection of “Xerocomus” sclerotiorum, obs 243879, revealed the two to be differing only at the ambiguous site in 279738. These two collections are conspecific.

Sure thing, Ron
By: I. G. Safonov (IGSafonov)
2017-06-23 19:19:50 PDT (-0700)

It’s probably worth taking a gander at the gene(s) of your TX collection, if you get my drift. :-) I’ve come across some interesting revelations by sequencing 4 collections of sclerotiorum-like boletes from NY, NJ, and VA (see the discussion in obs 249019). I suspect there are more than one species, and they will eventually wind up in a new genus.

Thanks I. G.,
By: Ron Pastorino (Ronpast)
2017-06-23 18:20:06 PDT (-0700)

They do look similar so It’s at least “promising”.
At least I was able to dry and voucher these.

Ron,
By: I. G. Safonov (IGSafonov)
2017-06-23 17:53:56 PDT (-0700)

These look similar to your obs 99185 that was identified for you by Arleen Bessette as Xerocomus sclerotiorum. I have a somewhat different understanding of the species concept through DNA testing of my own collections.
http://mushroomobserver.org/observer/observation_search?pattern=xerocomus+sclerotiorum

Created: 2017-06-23 17:41:06 PDT (-0700)
Last modified: 2019-09-03 14:23:46 PDT (-0700)
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