noun, plural per·i·the·ci·a [per-uh-thee-shee-uh, -shuh, -see-uh] /ˌpɛr əˈθi ʃi ə, -ʃə, -si ə/. Mycology.
Examples from the Web for perithecia
They have a solid carbonous interior with the perithecia imbedded near the surface.
Perithecia carbonous, forming several stratose layers, imbedded in the stroma in the depressions.
Our figure 856 shows a section, and the arrangement of the perithecia.
The original, by Ehrenberg, represents them as hollow bodies, with the perithecia imbedded in the walls.
The perithecia are generally imbedded in the outer portion of the stroma, the mouths opening through the carbonous crust.