Fairy Umbrellas

Saw these whilst working on a pool today. I was talking with someone at the weekend who is photographing fungi as his subject to gain his fellowship of the Royal Photography Society, or whatever they are called. Anyway, he was talking about which were edible, which weren't and some of the names. Luckily I have no idea what he was on about so I will continue to avoid eating them. And nor have I any idea what sort these are. Other than fairy umbrellas.