Pluteus cervinus is a mushroom species commonly known as the deer mushroom. It has a convex cap that expands to become flat, with a smooth surface and a light grey color. This mushroom inhabits forests and grasslands, where it thrives on the organic matter. The name "cervinus" refers to its association with deer since these animals enjoy eating this mushroom. While it is most commonly referred to as the deer mushroom or the fawn mushroom, it is also known as the grey knight, chestnut mushroom, and veiled lady. These synonyms are used interchangeably, but it's important to note that they refer to the same mushroom species, Pluteus cervinus.