Certainly looks like Porcelain Mushrooms hard to be sure from photos. But I have only ever seen it growing on Dead Beech branches.
Do you have seek by inature on your phone? If so try that picks up most mushroom, wouldn't trust it with my life mind.
Porcelain Fungus
WWW.WILDFOODUK.COM
Grows in large numbers and is great for the pot as long as the tough stems are removed and the slime washed off.
Cheers Arry