Species Lists



Proposed Names

45% (2)
Recognized by sight
57% (1)
Recognized by sight: A west coast name

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Considering the amount of Red alder, Bigleaf maple, Black cottonwood, Willow,
By: Daniel B. Wheeler (Tuberale)
2015-11-02 14:05:26 CST (-0500)

Hawthorne, etc., I’ll bet there is some Gymnopilus with hardwoods in Oregon. Not all collectors have embraced the need include probable host species, though (or know how).

Thanks for the lesson on G. theirsii, Alan. I learn a little all the time, and from you I learn a lot!

By: Alan Rockefeller (Alan Rockefeller)
2015-11-02 10:53:42 CST (-0500)

Gymnopilus luteofolius is a name from New York, on birch. G. aeruginosus is a name from the east on hardwoods as well, maybe PA or somewhere like that. In the east, the reddish hardwood Gymnopilus are not uncommon – but they are uncommon in the west. The name we have for the west coast conifer Gymnopilus is G. thiersii. You will not find any books or papers published with much info on this – other than the old Hesler Gymnopilus monograph and the G. thiersii species description. More DNA sequencing needs to be done.

Especially interesting
By: Daniel B. Wheeler (Tuberale)
2015-10-30 15:50:24 CDT (-0400)

since OR has both conifers and hardwoods (mixed) in area indicated. No indication from finder of host though.

Very interesting
By: Joseph D. Cohen (Joe Cohen)
2015-10-29 22:56:15 CDT (-0400)

That’s certainly an easy way to distinguish them. And I’m finding G. aeruginosus in PNW guidebooks (and MatchMaker). I poked around (using Google) to see if I could find a more recent reference that mentions the substrate / location differences, but no luck. Can you point me in the right direction?
— Joe

By: Alan Rockefeller (Alan Rockefeller)
2015-10-29 22:36:42 CDT (-0400)

G. aeruginosus grows in the east on hardwood and G. thiersii grows in the west on conifer.

How to distinguish G. thiersii from G. aeruginosus?
By: Joseph D. Cohen (Joe Cohen)
2015-10-29 22:29:53 CDT (-0400)


I don’t know who ID’d this collection at the Mycocamp, and — while there are some MO Observations in the PNW — G. thiersii is not in PNW guidebooks (or in Mushroom MatchMaker).

So how are you telling this specimen from G. aeruginosus? Is it (a) stipe color, see “Mycotaxo 34(1):219”, (b) something else, or (c) some combination of a and b?

— Joe