Fruit anatomy forms the edible tissue around the seeds. In other fruits such as "Citrus" stone fruits ("Prunus") only some layers of the pericarp are eaten. In accessory fruits, other tissues develop into the edible portion of the fruit instead, for example the receptacle of the flower in strawberries. In fleshy fruits, the pericarp is typically made up of three distinct layers: the epicarp (also known as exocarp), which is the outermost layer; the mesocarp, which is the middle layer; and the endocarp, which is the inner layer surrounding the ovary or the seeds. In a citrus fruit, the epicarp and mesocarp
Mess CPO Mess or officers' wardroom, respectively. At sea aboard naval vessels, messing is still separate, with E-6 and below utilizing the ship's mess decks, E-7 through E-9 utilizing the ship's CPO Mess, and commissioned officers being part of the wardroom. Certain large vessels (e.g., aircraft carriers, amphibious assault ships) may also include a First Class Mess for E-6, typically a separate dining area adjacent to the mess decks. This is considered a chance for future CPOs to learn how to be a part of a mess before they enter the CPO Mess, often called by the sobriquet of "goat locker."