Funny thing is, I have been looking at white cattleyas and crosses and haven't found bery many that are pure white without frills (is that what you call them? ), for some reason, I have a fancy for a non frilly flower, carried on an inflorescence, with a star shape. The best I found were some species cattleyas, today I will do some reading in books about cultivation of them. I have always believed (could be wrong) that hybrids are generally easier to grow.
Another beautiful white orchid that I'm having a little trouble finding is Cymbidium Sara Jean Ice Cascade.
But I'm having a lot of fun looking! And my wish list has now grown to two pages!