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Observation 475382: Pleurotus (Fr.) P. Kumm.

When: 2021-10-30

Collection location: Luzerne Co., Pennsylvania, USA [Click for map]

Who: BitterMugwort

No specimen available

Growing higher up along the trunk of a dead conifer. Flowing, fast moving stream directly adjacent to tree.


Proposed Names

28% (1)
Recognized by sight: Looks like Pleurotus. See comment.

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= Observer’s choice
= Current consensus


Add Comment
If you get a spore drop…
By: Dave W (Dave W)
2021-10-30 18:18:28 -05 (-0500)

and you mail the spore sample to me, I’ll check them with my scope. With these very wet mushrooms you probably should collect the print on a non-absorbent surface like foil. Don’t cover with a cup while attempting to obtain a spore drop. Too much moisture will create a very humid micro-environment under a cup.

unsure of conifer.
By: BitterMugwort
2021-10-30 17:13:57 -05 (-0500)

re: conifer… not sure, now that I think about it. Can check tomorrow when there’s sunlight.

Taking print / no scope
By: BitterMugwort
2021-10-30 17:13:12 -05 (-0500)

I would say it’s not extremely high up… maybe about.. 12-15 feet? Had to find a foothold at the base to reach up and grab one specimen. I’m taking a spore print, but I don’t have access to a scope — I’m very new to this and learning.

Pleurotus growing on wood of a conifer…
By: Dave W (Dave W)
2021-10-30 17:09:57 -05 (-0500)

would be a very unusual find. Are you sure the tree is a conifer? The fruit bodies are old and waterlogged, but they don’t look like Pleurocybella; thicker, more robust than P. porrigens. And the growth habit (individual fruit bodies high up a tree) seems wrong for P. porrigens.

It might be difficult to get any spores out of one of these. But, if you can find some spores with a scope (at 400x) then the shape will immediately settle Pleurotus vs. Pleurocybella.