How does a paph age?

[pedidiva]

Hi~~~

I have a few paphs. They are not multi-florals, nor are sequential bloomers (like pinocchio). I understand ( perhaps incorrectly) that they flower from new fans. What I need to understand is how the older fans look when they die off.

Is it one leaf at a time,or do most of the leaves of the older fan die off at the same time? Do the fans die from the periphery into the center, or is it vice-versa?

I have researched, but can find no answers. Paph eductors--please help me.

TIA~~
Pedi
Pedi