Observation 137836: Pleurotus populinus O. Hilber & O.K. Mill.

When: 2013-06-27

Collection location: Edmunds, Maine, USA [Click for map]

Who: Terri Clements/Donna Fulton (pinonbistro)

No specimen available

Growing on dead poplar. Fresh specimens.

Proposed Names

86% (1)
Eye3 Eyes3
Used references: Mushrooms for Health by Greg A. Marley
4% (2)
Used references: Mushrooms of the Upper Midwest

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Not sure
By: Terri Clements/Donna Fulton (pinonbistro)
2015-05-17 22:04:54 CDT (-0400)

what you mean but frequently P. ostreatus has a tightly inrolled margin which may appear that way. The flesh is quite thick. See obs 148132.

Thanks for the links
By: Jake (pharmaceutical farmer)
2015-05-17 21:36:46 CDT (-0400)

I’d also like to ask if you ever found these mushrooms with a distinct rim that runs along the bottom of the cap? The mushroom will also be firmer in comparison to p. Ostreatus with thicker flesh. I was wondering if you noticed that about these mushrooms.

Hi Jake
By: Terri Clements/Donna Fulton (pinonbistro)
2015-05-16 12:48:32 CDT (-0400)

No, I haven’t foraged in Minnesota though I hope to one day as we cross the country each year from Az to Maine and forage en route. Host tree and time of year can be helpful in ID ing oysters but also spore color. P. ostreatus has a lilac spore deposit. Two good resources are; http://www.mushroomexpert.com/pleurotus_ostreatus.html and http://www.bio.utk.edu/mycology/Pleurotus/default.htm From what I can tell microscopic analysis may not help to differentiate between species.


Pleurotus populinus
By: Jake (pharmaceutical farmer)
2015-05-16 11:19:00 CDT (-0400)

I was wondering if you have ever hunted in Minnesota before. That is where I found these mushrooms and so far no one I have heard from has ever found p. Ostreatus in the spring. I did the taxonomy on this specimen and found it to be p. Populinus due to its anise smell gill structure cap formation and so on I need a scope to view the spores. I would love to have the spores looked at.

This is the summer oyster on poplar.
By: Terri Clements/Donna Fulton (pinonbistro)
2015-05-15 12:07:08 CDT (-0400)

P. ostreatus is a fall mushroom in Maine and usually on maple. In Az I find P. ostreatus early spring and late fall on cottonwood.


Pleurotus ostreatus
By: Jake (pharmaceutical farmer)
2015-05-14 23:27:48 CDT (-0400)

In the books I have this mushroom has features more like pleurotus ostreatus. That is what I would call it still a great mushroom.

Created: 2013-06-27 20:08:29 CDT (-0400)
Last modified: 2016-07-24 21:23:24 CDT (-0400)
Viewed: 95 times, last viewed: 2017-06-16 05:13:40 CDT (-0400)
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