Question

What is etaerio?

Answer 1

etaerio A cluster of fruits formed from the unfused carpels of a single flower. For example, the anemone has an etaerio of achenes, larkspur an etaerio of follicles, and blackberry an etaerio of drupes.

An aggregate fruit or etaerio is a fruit that develops from the merger of several ovaries that were separate in a single flower. In contrast, a simple fruit develops from one ovary. Not all flowers with multiple ovaries form aggregate fruit; the ovaries of some flowers do not become tightly joined together to make a larger fruit.