Bovista pusilla  

Fruiting body: subglobose, (5–) 9–15 (–20) mm in diameter. Exoperidium: initially white, smooth to finely warted or tufted. In mature specimens the exoperidium disappears in the lower portion of the fruiting body but usually remains as a greyish-yellowish brown membrane or small granules in the upper part. Endoperidium: in mature specimens is usually exposed towards the base, dark brownish sometimes with slightly violet tinges. In old and weathered specimens, the endoperidium is fully exposed and dark brown. Peristome: Inconspicuous, flat to slightly protruding, not surrounded by a delimited peristome or a peristomal depression or fimbriate (fringed by hairs). Spores: subglobose to globose, 4.5-5.5μm in diameter, finely warted with a pedicel, 3-9μm long. Capillitium heteromorph. In centre of the gleba is of intermediate Bovista-Lycoperdon type with dichotomous branching and tapering ends; without septa. Outer parts of the gleba of Lycoperdon type with long, scarcely branched threads. Septa scattered to abundant.

Map of known distribution in Great Britain and Ireland.