[per-uh-thee-shee-uh m, -shuh m, -see-uh m]
- the fruiting body of ascomycetous fungi, typically a minute, more or less completely closed, globose or flask-shaped body enclosing the asci.
Origin of perithecium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for perithecium
The group 342 is characterized by a special type of ascocarp, the perithecium.
As at present limited, the Pyrenomycetes are "ascigerous fungi having the fructification enclosed within a perithecium."
When fully mature, the asci are ruptured and the sporidia escape by a pore which occupies the apex of the perithecium.
A perithecium, or cell excavated in the stroma which fulfils the functions of a perithecium, is always present.
The dissemination of the sporidia may, from identity of structure in the perithecium, be deemed to follow a like method in all.
- botany a flask-shaped structure containing asci that are discharged from an apical pore; a type of ascocarp
C19: from New Latin, from peri- + Greek thēkē case
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A small flask-shaped fruiting body in some ascomycete fungi that encloses the asci (spore sacs).
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