 The globular cells that make up the mica @-@ resembling scales on the cap are colorless , smooth @-@ walled , and range in size from about 25 – 65 µm , although most are between 40 – 50 µm . Buller explained the " glitter " of these cells as follows : " The sparkling of the meal @-@ cells , as well as of the cystidia on the edges and faces of the gills , is simply due to light which strikes them from without and is refracted and reflected to the eye in the same manner as from the minute drops of water one so often sees at the tips of grass leaves on English lawns early in the morning after a dewy night . " 
