I'm getting ready to send a dozen or so leaf specimens off to Critter Creek Labs to test for Cymbidium Mosaic Virus (CymMV) and Odontoglossum Ringsort Virus (ORSV). I've taken a variety of pictures of damaged leaves and thought that some members might be able to say for near certain that one or another is a viral infection. I could then turn my attention to plants with less obvious symptoms. Also, I plan to give an update once the results are in so that others can look at varified signs of infection much like a couple other members have done in the past.
Here's a URL where you can see 40+ shots of various unidentified icky leaf problems.
http://homepage.mac.com/jrpsto/Publi...toAlbum35.html
Cynthia, thank you for what you've posted on these matters and I hope to hear more details about your microscopic investigations in the future.
Onc. Splendidum/L. purpurata/L. anceps/Cymbidium/Oncidinae intergeneric