Oyster-like mushroom ID request

[Lc2285]

Oyster like mushrooms with white gills, fishy smell - found in north central Ohio today on a dead tree 

[vitog]

It's hard to tell with theses photos; the gills' attachment to the stems doesn't look decurrent enough.  But the mushrooms off the tree look too rotten to tell.  The fishy smell is rotting flesh.  The mushrooms on the tree in the top photo seem to have rather dark caps and are not as clustered as typical Oyster mushrooms.

[JOHNY]

In my experience, Oysters only form under bark and then emerge  through cracks/fissures in the bark. Once all the bark peels away leaving bare wood exposed, no more oyster mushroom grow.

It might be Hypsizigus ulmaris. It can grown as singles on dead wood but still in a loose group like in your picture.

Also Hypsizigus does not have decurrent gills, same as yours.

Is the tree a Box Elder (Manitoba Maple)? That would fit for H. ulmaris

A spore print would be useful and a spore microscopy even better.

[ricardooo]

On 3/8/2026 at 2:23 AM, Lc2285 said:

Oyster like mushrooms with white gills, fishy smell - found in north central Ohio today on a dead tree 

Unlock exciting bonuses, explore colorful slot adventures, and enjoy smooth https://spinfever.online/ gameplay with opportunities to win impressive cash prizes.

What kind of tree was it growing on, and were the mushrooms growing in shelf-like clusters or individually? Also, can you describe the cap color and texture (smooth, fuzzy, slimy, dry)?