variegated leaves

[karrolhk]

I have 3 questions about variegation in orchid leaves:

1. What causes some orchids to have NATURAL (not induced) variegation on their leaves? Is it also because of genetic mutation that some leaves just lack the green pigment chlorophyll in some plant cells?


2. Can the orchid name tell me if an orchid is variegated naturally or induced by virus? e.g. "Dendrobium anosmum variegated" - does the word "variegated" at the end tell me that this species is variegated artificially (induced by virus)? Similarly, orchid names without the word "variegated"/"variegata" means that the orchid is variegated naturally? e.g. Phalaeneopsis schilleriana?


3. Everytime when somebody talks about variegated leaves, the "neofinetia" species is often brought up. Are all vanda neofinetia variegated?


Thank you