Re: natural variegation
The only person I know that is doing anything related to variegation is Dr.
David Lee of Florida International University. He has been working on the
coloration of Calatheas and related plants. This might be a clue...
I do not have his email address but if this interests you, I think I can
Dewey E. Fisk, Plant Nut
THE PHILODENDRON PHREAQUE
Your Source for Tropical Araceae