noun (plural perithecia /-ˈTHēSH(ē)ə/ /-sēə/)Botany
(In some fungi) a round or flask-shaped fruiting body with a pore through which the spores are discharged.
- A spore leaving the perithecium travels nearly straight up at first.
- All these steps take place in a specialized fruiting structure, the perithecium.
- Features of the spores and the perithecium in which they occur suggest that this may be a fossil species of Savoryella.
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