Editing Macrozamia diplomera (section)

===Pinnae:===
The bifurcation of the pinnae is normally a simple division into two segments, which we refer to as sub-leaflets for the purpose of clarity, while the spread of the sub-leaflets ranges from those which are almost parallel to each other, to those which are angled, with the angle of divergence ranging from narrow to wide.
Infrequently, the pinnae division can vary from the normal division into two sub-leaflets to a double division into four sub-leaflets.
There is also an intermediate stage in which the pinnae divide into two segments, with the first segment again dividing (into two sub-leaflets) but with the other segment remaining entire thus creating, in effect, three sub-leaflets.
Very rarely, the pinnae division can result in five sub-leaflets being formed.
The division of the pinnae into sub-leaflets has the effect of creating a crowded look on the fronds as the sub-leaflets tend to overlap each other. On those fronds with predominantly divided pinnae, the division of the pinnae usually ceases towards the apex of the frond with the last few pinnae normally being entire.