Rhyncholaelia digbyana used to be called Brassavola dygbyana. Also Rhyncholaelia glauca use to be labeled as Brassavola as well. So far I haven't seen cucullata or nodosa listed as Rhyncholaelia, but I'm not up on all the name changes.
Some names have changed so many times. There must be a site with all the current info, but unfortunately, I don't know it.