perigonium
雄器苞; 圍生殖囊
Per·i·go·ni·um n.; pl. Perigonia Same as Perigone.
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perigonium
n : collective term for the outer parts of a flower consisting
of the calyx and corolla and enclosing the stamens and
pistils [syn: perianth, chlamys, floral envelope, perigone]
[also: perigonia (pl)]