Witches' 'butter or Leafy Brain?

I think this is Witches' Butter (Exidia gladulosa) growing on hazel but I could be wrong. I'm a bt confused by the colour, most images seem to show a darker fruiting body. Wrong colour for exidia plana and unlikely to be tremmela aurantia or tremella mesenterica on hazel.

Postscript: AJC suggested Leafy Brain (tremella foliacea) which I'd completely forgotten. Looking it up in my guide book it seems to fit the bill.