Coprinus plicatilis

Mushrooms, like snails,  have been given short shrift over the years at the CB.  That's because, like snails, they don't show up very often.  Yet at this very nonce, the CB features maybe a tousand or maybe two tousand of these diminutive yet delicate plus extra-ephemeral fungi.  Apparently,  Coprinus plicatilis is edible, but hardly worth the trouble.