Observation 186086: Leccinum Gray

When: 2014-10-22

Collection location: Algonquin Provincial Park, Ontario, Canada [Click for map]

Who: walt sturgeon (Mycowalt)

No specimen available



Proposed Names

58% (1)
Eye3 Eyes3
Recognized by sight
20% (3)
Used references: www.mycoquebec.org

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Color changes
By: Garrett Taylor (cappy)
2014-11-15 10:48:32 CST (-0500)

It certainly would be convenient if there were only two in the east. It doesn’t (I don’t think) explicitly say that on mycoquebec, but I feel that it is somewhat implied. I know that here in NY I find some with Red Pine, both plantation and native, and it’s in two fruitings mid-late June-early July and then again more broadly in September/October. I believe that I have found L. insigne here in early August as I brought some to a walk a few years back. I haven’t been tracking these before I found there was a chance to distinguish more than one L. aurantiacum a couple years ago, and I learned most of our trees even more recently than that! And I haven’t been going back to the L. insigne spot much since I found out they were logging it last year. Alas! I will look up Michael next season and see if he wants any of this material.

Leccinum project
By: walt sturgeon (Mycowalt)
2014-11-15 10:13:32 CST (-0500)


A study is badly needed. My observations are that color changes are not consistent and I am told that L. aurantiacum does not occur in North America. So much for trying to separate it from L.insigne and L.piceinum.

This was common there in September as with Leccinum scabrum, I think.
By: Garrett Taylor (cappy)
2014-11-15 00:06:48 CST (-0500)

I can believe things were still hanging on into October, that was around the time of my last significant finding of these here in NY. Anyway, Leccinum piceinum is mycorrhizal with pines and spruce and L. insigne, L. aurantiacum is with big tooth poplar and quaking aspen. There is a microscopic difference in the hyphae of the pileus cuticle in Melzer’s there are many stained cells, but not in L. insigne. Well that’s the best translation from Google (Smith and Theirs originally published this as a way to tell apart the different species in the Leccinum aurantiacum group), I have been content with the presence of mycorrhizal species.

Created: 2014-10-28 19:20:39 CDT (-0400)
Last modified: 2015-06-28 21:20:05 CDT (-0400)
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