Observation 175306: Pleurotus dryinus (Pers.) P. Kumm.
When: 2014-08-25
No herbarium specimen

Notes: 1. A cluster was growing on a rotting log.
2. Largest caps were perhaps 30 inches in diameter, stipe about 2 inches in diameter, height approximately 10 inches.
3. Neither cap, nor stipe, nor lamellae were brittle. Feels like an oyster mushroom. Does not exude any milky juice.
4. Cap was dry (even though it was raining), white with yellowish specs, somewhat fuzzy, stipe and lamellae dry.
5. When I broke the mushroom, the edges became yellow/dark yellow. Not immediately, after some time (~30 minutes).
6. Smell strong and unpleasant. Can’t describe it. maybe like old mushroom? slightly fishy? not sure.
7. Young and old (or rather, small and large) mushrooms looked the same in color.
8. Stipe very hairy.
9. Lamellae look like the paxillus. Somewhat decurrent?
10. Tried a sporeprint on dark and white paper overnight, did not get anything.
11. Does not disintegrate rapidly (was left outside overnight, did not change much except the top of the cap does not look fuzzy anymore.

To me it looks like a cross between a paxillus, a milky, and an oyster.

Proposed Names

-49% (2)
Recognized by sight
Used references
-4% (2)
Recognized by sight
64% (4)
Eye3 Eyes3
Recognized by sight
2% (2)
Recognized by sight
Used references: orson k miller Jr, mushrooms of north america

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Stem hairy
By: berl0009@umn.edu
2014-08-29 02:43:50 CDT (-0500)

Yes, stem was very hairy on all of them. I don’t know why it didn’t look as such on pictures, I think the camera focus was on the gills.
The mushrooms were very large. Like a decent size hen of the woods in diameter.

Pleurotus dryinus
By: walt sturgeon (Mycowalt)
2014-08-28 21:23:29 CDT (-0500)

has a very fragile veil which often disappears. There appear to be remnants on the fruiting on the far left. The “frosted” appearance of the cap is another good feature. Lentinus levis usually has a fuzzier stem.

no veil
By: berl0009@umn.edu
2014-08-28 19:24:52 CDT (-0500)

I should have added that as one of the enumerated points. there is no veil on the mushroom.

Any veil remnants?
By: Sashko (aioffe23)
2014-08-28 18:58:13 CDT (-0500)

Judging from the pictures, there is no veil. Did you see remnants of a veil on any of these mushrooms?

Orson K MIller lists “Panus Strigosus” as the largest Panus in the genus
By: berl0009@umn.edu
2014-08-26 09:03:08 CDT (-0500)

So I thought maybe it’s the one. Except the references list it as growing on living trees, these were found on a rotting log.

I like the Pleurotus Dryinus suggestion, almost everything fits the description
By: berl0009@umn.edu
2014-08-26 08:07:03 CDT (-0500)

I read the description on mushroomexpert.com, the only thing that is very different is the smell. The sight lists the odor as “not distinctive”. I had this mushroom and a few boletes in a bag, and the smell was overwhelming. I ascribed the smell to this mushroom, since I never had a bolete that smelled that strong or unpleasant, but maybe I was wrong, or maybe it was a combination of smells.
Additionally, the mushrooms in the cluster that I found were much larger than 4-12 cm listed on the site, but I assume that is typical size (say, for 75% of specimens?), not the largest observed?

Created: 2014-08-25 15:44:49 CDT (-0500)
Last modified: 2014-08-26 22:19:14 CDT (-0500)
Viewed: 77 times, last viewed: 2017-06-18 17:07:04 CDT (-0500)
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