Mushroom (scientific name: Agaricus campestris) is composed of two parts: mycelium and fruiting body. The mycelium is the vegetative organ, and the fruiting body is the reproduction organ. The mature spores germinate into hyphae. The hyphae are multi-celled and separated, which are elongated by the top growth, white, slender, wool-like, and gradually become filamentous. The hyphae conjugate each other to form a dense group called mycelium. After the mycelium is saprophytic, the dark brown culture material becomes light brown. The fruit body of the mushroom looks like an open umbrella when it matures. It is composed of cap, stipe, gill, ring, pseudomycorrhiza and other parts. Mushrooms have medicinal and food effects. It is also used for various character pronouns and cartoon images.