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English
The perianth of this flower includes the pale petals and the green sepals. The flower's organs hidden behind the petals in this photograph, namely the stamens and pistil, are not part of the perianth.
(botany,bryology) The sterile, tubelike tissue that surrounds the female reproductive structure in a leafy liverwort.
1992, Rudolf M Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page 5:
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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