Brad,
I have a good sized rock of xenia, I am not sure of the type, it is short, stocky and pulses a lot. I think it is the red sea variety, but I am not sure. I used to have a ton of it but got rid of all but the one rock. Someone who has seen it may be able to tell the type.
Anyways I have been thinking about splitting the piece anyway as a couple of stalks have spread to a nearby rock that was not intended. If someone IDs it as the type you like you are welcome to a piece. I will see if I have an old photo I could post.