Perianth

The perianth or perianth is the totality of sterile leaf organs in the flower of angiosperms. She sits down and outside. The function of the perianth is the protection of reproductive organs in the bud stage and the attraction of pollinators during anthesis.

Molding

As a non-uniform or heterochlamydeisch a perianth is called, which is divided into calyx and corolla. A uniform or homoiochlamydeische perianth is not divided into calyx and corolla and is called the perianth.

If there is no perianth, excelsior such as in Fraxinus, the flower is called naked or apochlamydeisch.

The members of the perianth can be fused together. This is called the perianth Syntepalie, the chalice Synsepalie in the crown Sympetalie.

Historical

The term was first used by Perianth Jungius 1678. He as well as Ray and Linnaeus 1682 1751 perianth use for the cup. The crown was then considered the actual flower. Only since 1815 Mirbel perianth used in today's sense of the whole perianth.