Diderma spumarioides

Peridium apparently single, but according to literature double, with two closely appressed layers dehiscing irregularly together.

Capillitium formed by slender yellowish-brown threads, branched, often with small wart-like thickenings.

Spores globose, dark brown with slight violaceous tints under the microscope, ornamented with darker warts irregularly distributed over the surface.