One of the novice growers benched some of the these in the Novice species class at the local orchid society. The problem is that the origin of these plants has been lost in the mists of time. Could be Epi. radicans or maybe they are hybrids with other species Epidendrums.
Worth growing despite the fact that they are Epidendrum Unknown.
The general public grow them as garden plants and call them crucifix orchids.

I wish I had a tag on this one...

This one is growing outside...

It's way nicer to look out at, than our snow.

And another color...

Nice collection.

Epis are my reminders of how diverse and easy some orchids can be to grow. I love them in my S. Cali yard.