DefinitionThis section has been translated automatically.
Thallus, from the Greek "thallos" = branch, refers to the multicellular body of plants and fungi that is not divided into root and shoot. Plants with this structure are known as "thallophytes" or "storage plants". Plants with a thallus include mosses. Various other plants also have a thallus. Algae, fungi and lichens also have a thallus.