What is "silverbell"

Usage examples of "silverbell".

She wore a long green dress and a green cloak embroidered with flowers, and carried a bunch of silverbell blossoms as if she had been gathering them.

Meldy Cholm laughed her low, sweet laugh, a silverbell called, the giant greenweb of the Queen Grove sounded its deep harp note, more or less all together.

It was the sound the giant greenweb sometimes made to trick a flock of silverbells into fluttering straight towards it, a deep drone which suddenly seemed to be pouring down from the trees and rising up from the ground.