Observation 10116: Pleurotus dryinus (Pers.) P. Kumm.

When: 2008-08-27

Collection location: Georgia, USA [Click for map]

Who: AmatoxinApocalypse (AmatoxinApocalypse)

No specimen available

Found these fruiting from a dead tree, they smelled sweet like apricot and kinda like citrus fruit as well.



Proposed Names

13% (2)
Recognized by sight
-9% (5)
Recognized by sight: Oregon Mycological Society members have been growing this species with mixed results.
65% (4)
Eye3 Eyes3
Recognized by sight: Note veil remnants on cap.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
If P. dryinus is the only oyster with a veil, then that’s our ID.
By: Debbie Viess (amanitarita)
2008-08-30 22:09:33 CDT (-0400)

It seems a bit more yellow than dryinus as described (and in other images I found), but yellow-capped citropileatus is much more fragile than the robust fruit body shown. If indeed dryinus, our origin discussion is moot; Pleurotus dryinus is a native found across N. America.

a citation for country of origin. I know that they are commonly cultivated.
By: Debbie Viess (amanitarita)
2008-08-30 10:47:21 CDT (-0400)
By: Daniel B. Wheeler (Tuberale)
2008-08-30 02:16:02 CDT (-0400)

Ed Foy of the Oregon Mycological Society has been growing this since getting a culture from Paul Stamets during one of his seminars. Usually the fruitings are smaller than in the picture, the caps more brilliantly colored. Also, in the Pleurotaceae the stem may or may not be centralized, depending on exactly where the mushroom decides to sprout from wood. Mushrooms grown on logs/wood tend to have different fruiting patterns than those grown on sawdust/bran or straight straw as substrate in my experience. And yes, this variety does not like Oregon much. Ed has had to coddle it – a lot – to get it to colonize substrate. Compared to Hericium erinaceus, which I have seen colonize a space bag of sawdust/bran in 28 days and have a fruiting body on it, P. c. reqiuires high heat during spawn run.

Can you cite a reference for this? I know that it is a tropical species…
By: Debbie Viess (amanitarita)
2008-08-29 11:26:00 CDT (-0400)

…and one that could potentially jump to a hot, moist environment in N. America (does Geogia and Florida qualify? ;). Just because it is found in those states right now doesn’t mean that it is a native. But I could be convinced with the right backup to your statement…and, I seem to recall from my recent tour at Far West Fungi that these colorful varieties were non-natives. But I will do some checking from this end, too…

P. citrinopileatus native species, I believe.
By: Daniel B. Wheeler (Tuberale)
2008-08-29 05:34:16 CDT (-0400)

Pleurotus citrinopileatus does not do especially well in Oregon because it is a warm-weather species. I believe it is found native in Florida as well as Texas.

Hmmmm, looks like the cultivars have hopped into the Georgia woods. That can’t be good!
By: Debbie Viess (amanitarita)
2008-08-28 10:19:51 CDT (-0400)

…at least it’s a decent edible rather than our “friend” phalloides, but still, just another non-native species to potentially wreak havoc.

as to other fine photos, Weiliiiiiii…MO has a new feature where you can post your own photo and bio. It is a bit much having it pop up with every comment, tho.

That picture
By: AmatoxinApocalypse (AmatoxinApocalypse)
2008-08-28 01:54:43 CDT (-0400)

Who is the women in the picture? Sorry i have to ask.

Pleurotus sp.
By: Debbie Viess (amanitarita)
2008-08-28 00:46:09 CDT (-0400)

Created: 2008-08-27 19:24:20 CDT (-0400)
Last modified: 2010-06-16 16:19:40 CDT (-0400)
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