perithecium definition

  • noun:
    • a little flask-shaped fruiting human anatomy in ascomycetous fungi which has the ascospores.
    • An ascocarp shaped like a skittle or basketball, distinguished by a little pore, the ostiole, by which the spores tend to be released one after another when ready.
    • An organ in some fungi and lichens, surrounding and enveloping the masses of fructification.
    • In botany, a cup-shaped envelop (or ascocarp) with all the margin incurved so as to form a narrow-mouthed hole, inclosing the fructification of specific fungi, lichens, etc.
    • flask-shaped ascocarp

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