The peridium is globe-shaped, sessile, without a stem-like base.
The peridium is round or conical and it dehisces by breaking away at the base.
The peridium breaks in various ways to permit the spores to escape.
The capillitium and fragment of the peridium of the same species, 380.
The opening of a peridium, when ripe, to discharge the spores.
In dehiscence, the base of the peridium in cup-form, sometimes persists.
The calcareous deposit on the peridium is usually very rich and under a lens appears made up of countless snowy or creamy flakes.
This beautiful species shows a peridium as distinctly double as in any diderma.
The lower part of the peridium is sometimes persistent after the dehiscence, and so far reminds of Craterium.
Varies to forms with single (inner) peridium and simple physaroid capillitium.