Observation 119623: Inonotus P. Karst.

When: 2012-12-11

Collection location: Austin, Texas, USA [Click for map]

Who: Mason Lalley (Tootybooty)

No specimen available

Growing from a rotting Alder tree.



Proposed Names

-44% (2)
Recognized by sight
30% (2)
Recognized by sight
31% (3)
Recognized by sight: Overall shades of copper/brown. Maybe something like P. everhartii?
-6% (3)
Recognized by sight: I was on hand when a collection like this was made in Wisconsin this past fall. Our collection was on a very large, dead burr oak.
48% (4)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Two new photos…
By: Dave W (Dave W)
2013-11-23 22:00:15 CST (+0800)

show what seems to me to be pretty similar to the ones originally posted. Note the prominently inrolled cap margins and elongated tooth-like tubes.

it’s back!
By: John Steinke (John Steinke)
2013-11-22 20:44:36 CST (+0800)

I find it hard to believe that the last two images are the same species as the first two?

And I feel dumb
By: Mason Lalley (Tootybooty)
2013-02-20 09:57:29 CST (+0800)

It’s an Alder tree…Hmmm namesake much?

Mason, if the context comprising these polypores…
By: Dave W (Dave W)
2013-01-21 23:03:10 CST (+0800)

starts out soft and then becomes hard as a fruit body matures, then this trait supports the Inonotus proposal. Compare with your other obs.

William Roody’s field guide “Mushrooms of West Virginia…” does a nice job on Inonotus hispidus.

I almost forgot
By: Mason Lalley (Tootybooty)
2013-01-21 12:55:45 CST (+0800)

about this Observation.
Okay, so I added two new pictures of mushrooms I found growing from the brown heart rot on the same tree a few days after i posted.
Over time they’ve grown to look like the original observation. So I’m changing my vote.

By: Mason Lalley (Tootybooty)
2012-12-21 07:20:01 CST (+0800)

Was hard fleshed. I broke one fruit body and it reminded me of Ganoderma applanatum, not quite as hard though. also, spore color is a little off; more orange than pink. After looking at Fistulina hepatica for a while, though, I can see that the individual fruit bodies are very similiar.

If it’s Fistulina…
By: Dave W (Dave W)
2012-12-20 23:00:31 CST (+0800)

the context will be fairly soft (like raw meat) with large tubes that may be separated form one another. Phellinus are hard-fleshed.

By: Mason Lalley (Tootybooty)
2012-12-19 08:53:43 CST (+0800)

Info, Dave! Just one more reason I would love to own a microscope one day.
With this in mind I will lower my rating.

Some Ganoderma species…
By: Dave W (Dave W)
2012-12-18 12:35:39 CST (+0800)

also have brown to reddish-brown spore prints, and cause a white rot in the wood of the host tree. But Ganoderma types that I know have white (or at least dingy whitish) pore surface. The specimen seen in this obs appears to have a truly brown pore surface. So with the additional info on spore print color, and ruling out Ganoderma on the basis of pore surface color, I think Phellinus is a pretty good bet. Reading about the two genera (Ganoderma and Phellinus) it seems to me that a micro-character (setae) may be the best way to really nail the ID down.

Something I just noticed while leafing through my manuals… some Phellinus species have brown spore prints and some have white spore prints. This is an unusual variation within a single genus.

By: Mason Lalley (Tootybooty)
2012-12-18 11:37:30 CST (+0800)

another one growing alone on an adjacent oak with visible heart rot.
Both this specimen and my documented one produced reddish brown spores.
I’m still familiarizing myself with the site and hunting in general, so forgive me if I’ve voted a little too enthusiastically.

Mason, this looks like a species of Phellinus.
By: Dave W (Dave W)
2012-12-18 10:27:14 CST (+0800)

But I’m curious about how you arrived at a high level of confidence for this proposal.

Created: 2012-12-11 16:07:43 CST (+0800)
Last modified: 2013-11-23 01:09:56 CST (+0800)
Viewed: 186 times, last viewed: 2017-06-15 02:09:27 CST (+0800)
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