perianth-segments

Updated: May 20, 2025

Corresponding to the outer, perianth-segments are the three stamens and the three, petal-like divisions of the style, each bearing a transverse stigma immediately above the anther. They are pollinated by bumble-bees, and in some instances by flies of the genus Rhingia, which search for the honey, brush the pollen out of the anthers and afterwards deposit it on the stigma.

Hugo de Vries - Species and Varieties, Their Origin by Mutation

According to systematic views of the monocotyledons the original prototype of the genus Iris must have had a whorl of six equal, or nearly equal perianth-segments and six stamens, such as are now seen in the more primitive types of the family of the lilies, as for instance in the lilies themselves, the tulips, hyacinths and others.

Hugo de Vries - Species and Varieties, Their Origin by Mutation