A delicate fungus growing on the rotting wood of broad-leaved trees and shrubs, this species has the English name of the grooved bonnet (Mycena polygramma) because the cap is bonnet shaped and has grooves in it! It is frequently associated with hazel coppice and you can see some fallen hazel leaves on the ground in this picture. It is a widespread and very common fungus, usually growing in small troops. The cap starts bell shaped but slowly flattens out to leave a centre 'hump'. Initially a creamy white but changing to an ochre colour with age.
Apparently has a faint taste of raddish but you would need an awful lot of them to make a worthwhile meal so don't bother!Mycena polygramma: the grooved bonnet