Observation 213066: Trametes gibbosa (Pers.) Fr.
When: 2015-08-07
No herbarium specimen

Notes: Many fruiting from sides of several adjacent decayed logs in Oak-Hickory forest. All very young/fresh.

Images

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Copyright © 2015 Judi Thomas
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Copyright © 2015 Judi Thomas
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Copyright © 2015 Judi Thomas
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Copyright © 2015 Judi Thomas.

Proposed Names

35% (4)
Recognized by sight: Chalky-white polypore with slotted pores.
56% (4)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Walt, Patrick, Dario and Dave: Thank you gentlemen for
By: Judi T. (AvidAmateur)
2015-08-18 10:40:27 EDT (-0400)

your careful consideration of this observation. I don’t believe we get any more “subtropical” here than what one can find in Tennessee=) I often see some of the same species from that far south posted on MO, but not any more southern than that. I am aware that T. gibbosa and T. elegans are difficult to differentiate, mostly due to the inherent variabilty of the pore surface patterns. Though the specimens in this observation do not look like what I am used to collecting frequently in my area, which are more clearly T. gibbosa (what I refer to as a lumpy bracket), it is probably the best bet. Perhaps this observation, just appears to be whiter, smoother, and less warty/lumpy than I am used to seeing because it is so fresh/young. For now, I will change my vote to T. gibbosa and plan to return to the site later to see how the remaining specimens develop. Thanks again for all your help and your considered opinions.

Judi
By: walt sturgeon (Mycowalt)
2015-08-17 19:53:39 EDT (-0400)

T. elegans is a subtropical species that might reach Missouri. T. gibbosa is the common species in the Midwest and Northeast. Kuo’s comments are outdated by recent DNA studies. He does not even mention T. gibbosa.

I just tested the white, corky context of the one specimen
By: Judi T. (AvidAmateur)
2015-08-17 19:35:02 EDT (-0400)

I collected with KOH and got a yellow reaction, which seems to fit with what Kuo says is expected of T. elegans. I forgot to mention in my original notes that these specimens had a very strong odor of anise, something I noticed just standing next to them without even putting them to my nose for a sniff. Didn’t find any reference to that applying to either T elegans or D. confragosa, but maybe I didn’t look in the right places for that. Arora mentions D. ambigua — all white — that is a southern version of confragosa, although he doesn’t say how far south.

D. confragosa…
By: Dave W (Dave W)
2015-08-17 15:29:33 EDT (-0400)

generally shows more color on the upper surface, usually in zones. Mushroom Expert mentions a white version of confragosa. One thing to check is whether the pore surface bruises reddish-brown, which should be the case with D. confragosa types.

Currently accepted species name for T. elegans in NA may have been changed.

Created: 2015-08-17 14:40:49 EDT (-0400)
Last modified: 2015-08-18 10:42:14 EDT (-0400)
Viewed: 82 times, last viewed: 2016-03-26 08:28:11 EDT (-0400)
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