Perithecium | definition of perithecium by Medical dictionary
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per·i·the·ci·a (per'i-thē'sē-ŭm, -sē-ă),
In fungi, a flask-shaped ascocarp, one of the many shapes of structures that bear asci and ascospores; useful as an aid in identifying a fungus.
[peri- + G. thēkē, flask]
perithecium (pĕr′ə-thē′shē-əm, -sē-əm)
n. pl. perithe·cia (-shē-ə, -sē-ə)
A small flask-shaped fruiting body in certain ascomycetous fungi that contains the ascospores.
per′i·the′ci·al (-shē-əl, -sē-əl) adj.
perithecium a type of fruiting body found in fungi of the ASCOMYCOTA, containing numerous asci (see ASCUS).
References in periodicals archive
appeared###Light brown###Light brown to dark brown###Blackish brown
According Benjamin the characteristics of the perithecial wall, the evanescent asci and light-colored spores, the appendages surrounding the ostiole of the perithecium
, and the manner in which the ascospores are discharged in the form of an elongate cirrus suggest a relationsship to the genus Chaetomium.
Fruiting bodies: Stromata brick-red at maturity, eventually turning brownish-black to black with age; hemispherical, 3-7 mm across, confluent forming extensive lobed crusts; surface papillate with protruding tips of perithecia but ostiolar necks do not extend beyond the crust of the stroma; ostioles breaking exposing pore into perithecium