Collection location: Menlo Park, San Mateo Co., California, USA [Click for map]
Ok, I saw something like this a few weeks ago, but it was pretty dried up and I didn’t know what to think. But the recent rains brought these up, they are right at the surface of the soil, and dark brown, so hard to see. They are just kinda wrinkled up Peziza, with plasticy thin fungus walls.
These are actually listed in Arora, but without a name, only as Peziza sp., so I will put them here as that. If someone knows more recent info on these, let me know.