| It is generally the darker disk which includes in its center the primordium. |
| The lines of various colours are primordium boundaries as recognized in consecutive members of the sequence. |
| According to the author, anlage may be variously rendered as rudiment, inception or primordium. |
| In the first step, a leaf primordium is formed that involves a switch from indeterminate to leaf developmental fate in the shoot apical meristem cells. |
| At the bulging stage, the site of primordium initiation shows an intensified expansion that is nearly isotropic. |
| The organogenic phase occurs when the leaf primordium initiates all the leaflets, lobes, and serrations seen in the mature leaf. |
