Exidia thuretiana?

[coffeeman]

found this growing in and around a crevice in a long-fallen log.

It’s gelatinous, quite featureless, going a faint blue as it dries, shrinks when dry but recovers in water. I’m thinking Exidia thuretiana but the spiky edges of the young surfaces don’t seem to match any photos I’ve found. The small round fruit body is about 10mm across. Am I over-thinking it or am I way off? “-)

regards, Alan

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[Leif]

Hello Alan

Could be. The two candidates for translucent white sheets and blobs are E thuretiana and E. nucleata. The latter has chalky inclusions, quite different spores, tends to form blobs, and it can be pale pink or violet as well as whitish. E. thuretiana tends to form resupinate mats with a wrinkly surface. In my opinion you have E. thuretiana, but I always do microscopy to be safe. I Googled E. nucleata and IMO many online photos are mis-identified, and are actually E. thuretiana, since they are forming distinct wrinkled mats, so caveat emptor, so to speak.

Incidentally, I think you have an Orbilia species nearby. Some here might consider that far more interesting I suspect.

[Ken Burgess]

It could also conceivably be Phlebia tremellosa at an early stage.

Ken

[Leif]

That is quite possible, not something that occurred to me.

[coffeeman]

thank you very much Leif and Ken,

I’ve left this to mature and it is indeed Phlebia tremellosa – guess the moral of this lesson is to give things time to show their true colours!

thanks again, Alan

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