An almost equally simple, though very different plan occurs in many plants in which a symmetrical flower secretes a few drops of nectar, and is consequently visited by insects; and these carry the pollen from the anthers to the stigma.
一个几乎同样简单但非常不同的计划发生在许多植物中, 其中一朵对称的花分泌几滴花蜜, 因此被昆虫访问;这些将花粉从花药带到柱头。