Lepidozamia peroffskyana - cone formation

In my backyard is a Lepidozamia peroffskyana.  It is now about 25 years since planting.

If there has been normal rain in and before December the plant grows a new crown. Usually of five fronds and takes over two weeks for the fronds grow fully  In dry years there is no sign of a fresh crown.  The old fronds are, at the time of  writing, slightly longer than two metres. The plant base is about 33cm high and 25 cm diameter.

On 16/11/2016 a cone was observed on the baseStart of cone 4/12/2016  cone growing
Cone now 43 cm high   16/12/2016  Cone segments start to seperate   17/12/2016  The cone was now 68 cm high.  
The whole plant 22/12/2016
Cone last stage  2/1/2017.  Tapping the cone produced a faint white mist, assumed to be male spores .
David Shaw