the world > plants > part of plant > (defined by) distribution, arrangement, or position > [noun] > union or separation (2)
In the development of a flower: division of a floral organ, esp. a stamen or petal, into two or more identical structures resulting in an increase…
The congenital union of contiguous organs, viewed as the natural or primitive state; as opposed to coalescence or adnation, which imply original…