peri·the·ci·um /ˌpɛrəˈθiʃiəm, si-/
子囊殼
peri·the·ci·um /-ˈθɪsɪəm/ 名詞
(複perithecia)子囊殼
Per·i·the·ci·um n. Bot. An organ in certain fungi and lichens, surrounding and enveloping the masses of fructification.
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perithecium
n : flask-shaped ascocarp
[also: perithecia (pl)]