Geastrum schmidelii Vittad.

Fruit body: at first onion shape and half-buried, up to 2.5 cm,  exoperidium splits into 5-8 rays , diameter up to 4 cm. Gleba is globose, up to 1.2 cm, short-stalked, peristome usually distinctly delimeted by a low, circular ridge, dark brown when mature.

Microscopy: spores globose, warted, 4.8—5.6 μm, dark brown en masse.

Habitat: amongst moss and grass on sandy terrains.

Edibility: inedible.

Reference: Pegler, D.N., Laessoe, T., Spooner, B. (1995). British puffballs, earthstars, and stinkhorns, Royal Botanic Garden, Kew.

Photo: Goran Milošević