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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Botany) botany of or pertaining to the peridium
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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.