Coprinus comatus, the shaggy inkcap, lawyer's wig, or shaggy mane.
The next best known, and also conditionally edible:
Coprinopsis atramentaria, the common inkcap, inky cap, or tippler's bane. Edible, but causes effects similar to those of disulfiram. As such, alcohol is to be avoided before, during and after consumption.
Also any of the following, many of which are poisonous:
This page is an index of articles on fungus species (or higher taxonomic groups) with the same common name (vernacular name). If an internal link led you here, you may wish to edit the linking article so that it links directly to the intended article.