The inflorescence is the arrangement of flowers on the flowering branches (inflorescence axis), the simplest form of inflorescence is a solitary flower, if there are more than one flower arranged on the inflorescence axis, the type of inflorescence can be divided in the following two ways:
According to the structural form of inflorescences, they can be divided into racemose inflorescences, spikelike inflorescences, catkins, corymbose inflorescences, capitulum, panicle, umbellate inflorescences, Cymes
Two, according to the order of flower opening sequence can be divided into infinite inflorescences (centripetal inflorescences) and
limited inflorescences (centrifugal inflorescences)
The so-called primordium, that is, the initial structure of the differentiation of the initial structure is generally a globular cell mass projections.
When a flower begins to differentiate, it first forms an inflorescence primordium, which further branches and differentiates to form an inflorescence. On the branchlets of the inflorescence, multiple floral primordia are further formed and flowers bloom; as many inflorescence primordia as there are, as many inflorescences are formed, and a cluster of flowers grows from each inflorescence.
So you should understand.