Definition of "perigone" []

• Perianth (noun)
• In mosses, the involucral bracts of a male flower. (noun)
• A sac surrounding the generative bodies in the gonophore of a hydroid. (noun)

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• "There are two sets of perigone leaves, three in each, and these are usually much alike except the lower (through the twisting of the ovary) of the inner set."
• "In all of these, except _Trillium_, the perigone leaves are colored alike, and the leaves parallel-veined; but in the latter the sepals are green and the leaves broad and netted-veined."
• "The leaves of the perigone are numerous, and sometimes merge gradually into the stamens, as we find in the common white water-lily (_Castalia_)."