Geastrum coronatum Pers. (illustrated 50% life size) Fruit body opening to 5–9cm across; outer wall splitting into 5–8 pointed rays which curve downward and become irregularly cracked. Spore sac on a short, thick stalk, subglobose, opening by a central pore; grey-brown. Spores 3.5–4.5¼ in diameter, globose, warted. Spore mass dark brown. Habitat on soil in coniferous or deciduous woods; autumn. Uncommon. Not edible.