perianth
noun 2
Definitions
noun
1
The sterile parts of a flower; collectively, the sepals and petals (or tepals).
2
The sterile, tubelike tissue that surrounds the female reproductive structure in a leafy liverwort.
Archegonia are surrounded early in their development by the juvenile perianth, through the slender beak of which the elongated neck of the fertilized archegonium protrudes.
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