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n. pl. pe·rid·i·a (-ē-ə)
The covering of the spore-bearing organ in many fungi.

[New Latin pēridium, from Greek pēridion, diminutive of pērā, leather pouch.]

pe·rid′i·al (-ē-əl) adj.


(Botany) botany of or pertaining to the peridium
References in periodicals archive ?
Peridial cells yellowish brown, rhomboidal to oblong or irregular, 17.7-39 x 22-53 um (mean 35.28-37.86 um); wall densely verrucose, 2.8-8.5 um.
Very few AMF spores were reported amongst the gametophyte rhizoids, the spores were organized in groups of 5, pairs or singles, adhering to each other by common peridial hyphae.
Peridium erect often shrinking away from the host, dehiscing irregularly at top and becoming revolute; peridial cells hyaline, rhomboid to rectangular, 18-28 x 12-18 [micro]m, inner walls 2-3 [micro]m thick with coarsely verrucose surfaces, tubercles forming humps or short ridges occasionally giving a striate appearance, especially on outerwalls which are 4-6 [micro]m thick.