oh, I didn't expect you to have experience with them. kudos and shimmy. I know that there are plenty in greenhouses, but not having grown them I have been under the impression their fungal relationships are so misunderstood that there must not be many varieties in circulation. I know most are endangered in my area in the appalachias. If you'd ever like to grow an odd one and need help finding mycorrhizal fungi or substrate I could probably help. Orchids and and fungi together are akin to sophonophores in my mind, floating around the woods like a man of war waiting to sting the right tree.