When: 2009-07-02

Collection location: Strouds Run State Park, Athens, Ohio, USA [Click for map]

Who: Dan Molter (shroomydan)

No specimen available

Flesh is firm not slimy, and the flavor is mild not bitter.

Species Lists


Proposed Names

14% (2)
Recognized by sight: 100 % a Leccinum from the group with yellowish pores like L.carpini
44% (4)
Recognized by sight: A bit dark but within variation possibilitiess. Scabers are not black, rather caramel colored. Would be better to know the oxidation reax in the flesh.
57% (3)
Recognized by sight: Synonym: Leccinum nigrescens

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= Observer’s choice
= Current consensus


Add Comment
By: Roy Halling (royh)
2009-07-03 19:20:38 CDT (-0500)

Everything is edible once. Don’t know who said that. Even those in the aurantiacum group can make some people ill (as noted already), and the fungus doesn’t have to be from N America or Europe. Costa Rica for example.

In all molecular phylogenies that I have seen, yellow pored Leccinums are not “true” Leccinums in the sense of scabrum and aurantiacum.

Shroomydan has a couple of nice images here and he didn’t cut off the stipe base this time. Good on ya!

As I have told Ian from NSW, please cut the fungus lengthwise (after taking the pics) and watch how the flesh changes. OR, post a pic of the reaction once cut. That will help.

If you want a key to genera of Boletes go here: http://www.nybg.org/bsci/res/hall boletes/. Look at the menu in the upper right. Thanks!

I suppose you mean….
By: Johannes Harnisch (Johann Harnisch)
2009-07-03 18:41:15 CDT (-0500)

Type 8 toxin, right?
is there known to be a specific poison or is it a gastrointestinal irritant?

yellow pores
By: Dan Molter (shroomydan)
2009-07-03 18:32:31 CDT (-0500)

Maybe Gerhard meant that all Leccinums “from the group with yellowish pores like L.carpini” are edible. I wonder if all the poisonings are from Leccinums with more brilliantly colored pores.

Bolete lore has it variously; that unless the mushroom has red or orange pores it is edible, or that bolets with red and yellow together should be avoided, all others being safe. L. aurantiacum seems to have both red and yellow. I wonder about the others.

well, except for the ones that aren’t edible, at least here in North America…
By: Debbie Viess (amanitarita)
2009-07-03 17:20:26 CDT (-0500)

L. aurantiacum alone was responsible for 18 different reported incidences of poisonings, and Leccinums unidentified to species were the causes of 31 more.
(from “Thirty Plus Years of Mushroom Poisoning: Summary of the Approximately 2,000 Reports in the NAMA Case Registry”, Michael Beug, Marilyn Shaw and Kenneth Cochran. McIlvainea, Vol. 16, Number 2, Fall 2006.)

But if you are collecting for eating
By: Gerhard Koller (Gerhard)
2009-07-03 16:31:18 CDT (-0500)

then it is no problem at all cuz they are all edible.

By: walt sturgeon (Mycowalt)
2009-07-03 15:07:04 CDT (-0500)

Cut them vertically and photograph the color change. Then hope for the best. Ohio’s common gray one is Leccinum snellii which bruises greenish on the lower stipe and orange on the cap flesh. Still no guarantees. Color changes on Leccinums are variable though…