Claim: Sclerodermataceae's fruit-bodies are mostly epigenous and the peridium is mostly simple rarely 2-layered, firm, rarely thin, membranous, breaking open irregularly.
Evidence: Fruit-bodies are mostly epigenous (above ground), rarely hypogeous (underground), more or less spherical in shape, without a stem or with an irregular root-like stem. The peridium (outer wall) is mostly simple, rarely 2-layered, firm, rarely thin, membranous, breaking open irregularly or in lobes or decaying, revealing the gleba.