I think I may have a possible virus. I have been searching in books and the Internet to no avail. I bought this Masdevallia about 4 months ago. It has grown very well but even since it was purchased the newest growth seems stunted,compared to the oldest growth and has some colour break on the leaves. But the newest leaves seem thicker and sturdier so I thought this was do to light increase. I have kept on eye on it regardless, and today I noticed the newest leaf has strange metallic bars on it.
Culture is the same as my other masdies.
14 " away from 4 54watt ho t5 fluorescent tubes
22 Celsius day temp drop to 19 at night
70% average humidity
Here are pics what do you think