Got me looking? Any of the old timers on here that can jump in and help?? Don't know if this rust is a sans fungus or not. Hi variegated plants seem to suffer from these strange afflictions. I would use an anti-fugal med just to see if it helps.

Hi Stush,

Thanks, this lovely was from you & is a favorite of mine. Here's the remaining rusty spot, I didn't think to apply cinnamon before re-potting.

The tissue is all dry & firm to the touch. Hum ...

Karen look up 'Manolin'.......which may or may not be the same as 'Siam Silver'. Apparently rust is very common on that (this?) cultivar. I have propagated leaves of this but unfortunately the resultant plants are plain green guiniensis.