I found these mushrooms while taking a walk in my neighbourhood in Surrey. The cape shape looks campanulate, with a crenate margin and a smooth surface. The partial veil appears stellate. The attachment looks adnate, with a broad breadth of gills and close gill spacing. The edges of the gills looks even, and the location of the stem is central and the shapes of the stems look equal. The stem surface appears to be peronate. The mushrooms are a very unique orangey brown colour. These mushrooms appear to be Mycena aurantiomarginata displayed here: https://en.wikipedia.org/wiki/Mycena_aurantiomarginata