Mycena olida
Mycena olida, commonly known as the rancid bonnet, is a species of mushroom in the family Mycenaceae. It was first described in 1887 by Italian mycologist Giacomo Bresadola. Description The cap, initially conical to convex in shape, flattens out with age and typically reaches diameters of up to . References olida Fungi described in 1887 Fungi of Europe Taxa named by Giacomo Bresadola