this post was submitted on 10 Sep 2025
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Mycology
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I am curious. Anyone know what this guy is?
I’m curious as well and guessing maybe ~~ birch polypore, birch bracket, or razor strop ~~?
Fomitopsis betulina https://en.m.wikipedia.org/wiki/Fomitopsis_betulina
It doesn't resemble any of the other birch polypores around here.
Let me guess, you put this into some computer vision app and it guessed a polypore from a photo of a gilled mushroom because it saw birch bark.
Sadly no, I typed up the description on Brave search; it took a while because I used common words:
“Mushrooms that grow on tree branches sideways possible orange color” and variations of without using punctuation and the +/- symbols.
Now that you mentioned it, if there is a computer vision app you can recommend I would very much appreciate it. I’m not tech savvy and using an old iPhone if that helps. Thank you.
I use iNaturalist but it's pretty hit or miss (the bark thing is one kind of mistake I see it make frequently).
Got it, thank you so much! I agree with your statement regarding the bark as I was looking at the photos from Wikipedia.
I’m delighted to see that iNaturalist works on birds as well; my references are mostly books and journals with questionable illustrations and photographs.
Thank you so much, you’re lovely!
Maybe something like Armillaria mellea it's hard to tell for sure.
Unfortunately it's on the side of a rock face, so I can't get any closer. It's in Sweden if that helps.
Looks like it could be a Funeral Bell (Galerina marginata)
Oh wow, I didn’t know those guys grew on upper tree branches. Nice photo, thanks for sharing.
They don't, G. marginata grows on dead wood usually near the ground so this is another point against that id.
They look a little big/stocky to be Galerina marginata IMO. I don't think it usually clusters that hard either.
Well good thing I don't Forage. Cause I thought those looked like some damn good pink oyster mushrooms.
Oyster mushrooms don't have rings and the gills tend to go nearly all the way down the stem. They also tend to grow on dead trees, not living ones like these.