Fairy Ring Mushroom, or Scotch Bonnet.

(Marasmius oreades.) This common mushroom grows in troops, arcs, or large rings, often too large for me to photograph. The mushrooms spread out in all directions joined by the central point which is the original location of original spore which germinated. Edible sweet tasting mushrooms, used for baking foods such as cookies, and used in soups and stews etc.