Holly Leaves with white? (Fungus?)

Holly Leaves with white? (Fungus?)

Observation - Holly Leaves with white? (Fungus?) - UK and Ireland. Description: This fungus, if that is what it is was only on a few leaves and all in the same 15 metre area. They were under a large holly tree that is on the edge of a golf course fairway. the open side of the plantation faced west south west.

This fungus, if that is what it is was only on a few leaves and all in the same 15 metre area. They were under a large holly tree that is on the edge of a golf course fairway. the open side of the plantation faced west south west.