Lycoperdon perlatum Pers. syn. L. gemmatum Batsch Flaschenstäubling Vesse-de-loup à pierreries, Common Puffball. Fruit body 2.5–6cm across, 2–9cm high, subglobose with a distinct stem, white at first becoming yellowish brown, outer layer of short pyramidal warts especially dense on the head, rubbing off to leave an indistinct mesh-like pattern on the inner wall which opens by a pore. Gleba olive-brown at maturity; sterile base spongy, occupying the stem. Spores olivaceous-brown, globose, minutely warted, 3.5–4.5m. Habitat woodland. Season summer to late autumn. Common. Edible and good -when the flesh is pure white. Distribution, America and Europe.