Ditmar Enteridium lycoperdon, the false puffball, is one of the more obvious species of slime mould or Myxogastria, typically seen in its reproductive phase as a white 'swelling' on standing dead trees in the spring, or on large pieces of fallen wood.

[8] E. lycoperdon grows typically on dead alder branches, logs, and stumps in wet places beside rivers, streams and wetlands; it is also found growing on dead elm, beech, poplar, hawthorn, elder, hornbeam, damson,[9] hazel,[10] and pine trees[11] often after late frosts in spring and in the autumn.

[1] The plasmodial phase is mobile and is multi-nucleate, formed by the fusion of single cells and typically amoeboid in its movements, through cytoplasmic streaming.

The sporangial or aethalial phase of this slime mould is spherical, elongate or globular, 50 to 80 mm, and is at first highly glutinous in appearance, resembling small slug eggs.

[14] The spores are brown, subglobose or ovoid, punctate (spotted), 5–7 μm in size and dispersed by wind and rain until only a few delicate threads of the sporangium remain, resembling soft foam padding.