Or basket weave fungus. Was delighted to see this actually unfurl before my eyes. When I first spotted it, it was still only half out of its round casing. By the time I had fixed my tripod so the camera was hanging upside down it had almost fully unfurled. There were a couple of other buds around too. I carried on further down the path, but had to retrace my footsteps as I had left something. Couldn't believe that 2 more had unfurled in the short space of time I was away. This is a focus stacked shot of 10 shots.