It is smallish, white or grey-brown, having a pear-shaped structure on a pedestal. Grows typically in troops on rotten wood or stumps, sometimes submerged so that the fruiting bodies appear to be growing on soil.
often pear-shaped, but may also be nearly spherical. When very young covered in small white spines that typically fall off before maturity. Colour ranges from nearly white to yellowish brown with the darker shades developing with age. Spore mass at first white and firm, becoming olive-brown and powdery. Spores
Found in open, wooded areas, Lycoperdon lividium is also smooth, but is grayer and has warty spores (those of Lycoperdon pyriforme are almost smooth).
on the MushroomExpert.Com Web site.