Elaine and Ursula.

Cattlianthe? "Another breed of finicky feline" I have to do research on.

I am doing some research on my Odcdm. Wild Willie 'Pacific Bingo' and I'm now confused on what it's proper name is now and what exactly was its name before the "powers that be" decided to change it. On the web its listed as a Burrageara, a Colmanara, a Odontocidium and sometimes just as an Oncidium. I know its culture is basically an Oncidium but with every different names each author/nursery lists it light requirement from low light to bright light to partial shade. I'm not sure if I'm looking at the same plant or not.

It is now Oncidium Wild Willie, synonym with Odontocidium.
http://apps.rhs.org.uk/horticu...

The reason for the name change doesn't really impact the care and we all know that. Really good Orchid sites keep up with the changes.
What you have to realize is that the fringe sites, those not dedicated to orchids, are the ones with the issues.
Most of these Oncidium Alliance stuff likes medium light, 1,500 to 2,200 footcandles. Some like a little more and some a little less. That of course begs the question, "What in the world is a foot candle?" That is a term regarding light intensity. Most of these orchids require around two hours of direct sunshine, otherwise a bright location. Morning sun is infinitely better because although the intensity is proper, the HEAT is much, much less. Oncidiums love water. If the sun that they get is warm afternoon sun, they get stressed to some degree by the heat. They develop a greater demand for water and if you expose them to that kind of light for long periods of time, they suffer for it.