Found in both young and mature stages, lay 24 hours from youth to death. They are edible
I found an "inky cap" mushroom across from Kinkaid hall in my Natural History class. It has small white hairs on it. These mushrooms elongate over night to spread their spores.
The Agaricaceae are a family of basidiomycete fungi and includes the genus Agaricus, as well as basidiomycetes previously classified in the families Tulostomataceae, Lepiotaceae, and Lycoperdaceae.