Observation 136830: Boletus pseudopinophilus Siegel, Frank, Bessette, A.R. Bessette & Craine nom. prov.

When: 2013-06-18

Collection location: Duluth, Georgia, USA [Click for map]

Who: Jimmy Craine (doctorghosty)

Specimen available

growing amongst pines in massive numbers



Proposed Names

16% (2)
Recognized by sight
28% (1)
Recognized by sight: Pine associate with flap along cap margin and thick white reticulatum on stipe.
55% (4)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Again, would this be B. pseudopinophilus?
By: Scott Pavelle (Scott Pavelle)
2017-06-11 22:35:01 CEST (+0200)

Pines makes sense, but I don’t see the darkening reticulation from handling. I’m curious to see photos that might have been labeled wrong & Igor suggests this one as a likely target.

I will
By: Jimmy Craine (doctorghosty)
2014-03-22 05:59:47 CET (+0100)

I will collect again this year, they are ridiculously delicious

By: Dave W (Dave W)
2014-03-22 05:52:39 CET (+0100)

I don’t think the bolete seen here is an example of separans.

I have seen examples of separans with raised white reticulatum.
But the observation seen here shows a prominent grid of variously shaped areas, with a brownish ground color on the stipe.

B/R/B applies the European name Boletus “pinophilus” to a type of eastern King Bolete that associates with pine. I think this obs may be an example.

By: I. G. Safonov (IGSafonov)
2014-03-22 05:03:24 CET (+0100)

It seems that morphology isn’t helpful enough to answer your question, but the ammonia test and a spore print should at least be capable of resolving the separans/subcaerulescens dilemma. Perhaps Jimmy Craine will be able to carry out both this year when he revisits the location.
I remember you posted a tantalizing observation a year or two ago (for some strange reason I cannot find it now) and a bunch of us argued about the same thing till we got hoarse. :) We should all be making vouchered collections of these elusive to id species, such that one day DNA sequencing can shed more light on their identity.

A question emerges…
By: Dave W (Dave W)
2014-03-22 03:24:27 CET (+0100)

Is Boletus subcaerulescens one species which includes both variably bluing and consistently non-bluing varieties? Or is there more than one species (bluing vs. non-bluing) of these coarsely reticulate pine-associating boletes?

ambiguity squasher
By: Jimmy Craine (doctorghosty)
2013-06-26 20:26:49 CEST (+0200)

sorry! I did not perform the test, as I have no ammonia.

“No on the ammonia, unfortch”
By: I. G. Safonov (IGSafonov)
2013-06-26 20:02:54 CEST (+0200)

could also mean that that test was not performed; hence X. separans is not ruled out… Less ambiguous language always helps. :) The spore print can help placement into the appropriate genus.

No amonia reaction…
By: Dave W (Dave W)
2013-06-26 15:48:46 CEST (+0200)

points away from X. separans. I think this may be an example of an NA type that has gone by the name “pinophilus”. See Kuo’s comments under B. pinophilus in the link.

I have found a type that fits this description (an apparent pine associate) in Pennsylvania.

No on the ammonia, unfortch
By: Jimmy Craine (doctorghosty)
2013-06-19 05:43:13 CEST (+0200)

but yes on the collection and cooking thereof… I plan on swinging by again tomorrow to pick through the bones! 2 specimens and 1 meal in I would say they are the third best edible I have ever collected (behind chants and lion’s mane)

By: I. G. Safonov (IGSafonov)
2013-06-19 04:49:54 CEST (+0200)

I hope you picked them all up and dried them. Regardless of what species these actually are, they are from the edulis clade and should be delicious. Judging from one of the pics, even mature specimens are completely devoid of larvae tunnels. Congrats!!!

Can you put a drop of
By: Noah Siegel (Noah)
2013-06-19 02:51:50 CEST (+0200)

Ammonia on the stipe and report the reaction?

Created: 2013-06-19 01:23:38 CEST (+0200)
Last modified: 2017-06-11 23:13:11 CEST (+0200)
Viewed: 309 times, last viewed: 2018-06-22 17:45:45 CEST (+0200)
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