vanda is a genus, vandaceous just refers to a number of similar genera that are closely related to vandas. what I was noticiing was the fans of pleated leaves and thick, hearty roots, both of which typical for vandaceous orchids.
the 5th and 6th pictures look like something from the cattleya alliance--I had missed those pictures before.
of course, I could be wrong. it certainly wouldn't be the first time!
