I think the plant is closer to being Plths discoidea.
IOSPE PHOTOS
Not definitive.
It's difficult to ID an unidentified Plths. There are so many of them. Not to mention, the same plant can have variations in physical appearance depending on the growing conditions it's subjected to.
From what I see on Jay's Internet Orchid Encyclopedia, this is the closest looking one.
Ask your friend if the name sounds familiar.
Unless of course, she purchased it as a random Plths sp., then she wouldn't know.