I found a patch of Craterellus cornucopioides. It's pretty uncommon around here, and I've very rarely seen any. Despite its fairly grim appearance, it's edible and delicious.
It's also called horn of plenty as its Latin name, cornucopioides, implies. I picked the most dramatic sounding name from Wikipedia for effect. I know them as black trumpets. They can also have a really dark coloring, which can make them look uninviting.