Looking rather like the Common Field Mushroom, Agaricus altipes is a rare fungus characterized when fresh by its snow-white cap and stipe, deep salmon-pink gills and, microscopically, by a lack of cheilocystidia. It differs from the Field Mushroom by the pink flush on the stipe; by its habitat, dense woodland; by its occurrence mainly April-July often with Spruce or Yew; and apparently by sometimes having an unpleasant smell, though these had no smell. A 1st Notts record.