noun, plural pe·rid·e·a [puh-rid-ee-uh] /pəˈrɪd i ə/. Mycology.
Origin of peridium
Examples from the Web for peridium
The opening of a peridium, when ripe, to discharge the spores.Among the Mushrooms|Ellen M. Dallas and Caroline A. Burgin
The peridium is round or conical and it dehisces by breaking away at the base.
The capillitium and fragment of the peridium of the same species, 380.The North American Slime-Moulds|Thomas H. (Thomas Huston) MacBride
The peridium is round, often slightly depressed above, plicate below, where it is abruptly contracted into a long stem-like base.
The threads, or capillitium, which bear the spores proceed from the walls of the peridium and form the central columella.