Observation 81825: Phellinus betulinus (Murrill) Parmasto

When: 2011-10-20

Collection location: Pend Oreille Co., Washington, USA [Click for map]

Who: Drew Parker (mycotrope)

No specimen available

Species Lists



Proposed Names

56% (1)
Recognized by sight
9% (2)
Recognized by sight
27% (1)
Recognized by sight: I assume that the host is birch

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= Observer’s choice
= Current consensus


Add Comment
P. laevigatus
By: Irene Andersson (irenea)
2011-11-11 08:28:15 PST (-0800)

is my guess, only because I don’t know what else it could be..
It is found mainly on birch and the pore surface turns grey rather soon when it’s aging – but hardly violet (sky reflection..?). Phellinus punctatus has less marked margins. If it is possible to check some details in the scope and use a Phellinus key, look for hymenial and tramal setae (some have them, some haven’t), spore size and shape. Some have dextrinoid spores, some haven’t.

By: damon brunette (damonbrunette)
2011-11-11 06:49:44 PST (-0800)

Thats why I wonder about Irene’s suggestion as well. Also why when I looked at the first picture on my iphone it reminded me of H tortisporum (sp?) because of the shape and coloring.

P. punctatus
By: Drew Parker (mycotrope)
2011-11-11 06:46:56 PST (-0800)

Yes, I added the second picture after your proposal.

I suppose this could be Phellinus punctatus, or possibly more likely P. laevigatus, but what puzzles me is the violet grey color. I don’t find that in the descriptions.

By: damon brunette (damonbrunette)
2011-11-11 06:39:22 PST (-0800)

are you going with this name just because of host, or is there something else you commonly see with species?

Did you add that 2nd picture
By: damon brunette (damonbrunette)
2011-11-11 06:22:09 PST (-0800)

after my name proposal or was it there originally? Maybe Phellinus punctatus?

By: Drew Parker (mycotrope)
2011-11-10 21:20:20 PST (-0800)

This appears to be a polypore.

Created: 2011-11-09 16:35:20 PST (-0800)
Last modified: 2016-07-28 18:58:45 PDT (-0700)
Viewed: 101 times, last viewed: 2019-03-05 16:55:21 PST (-0800)
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