I have no idea if the stump is dead or alive. I've only had it a few days so have never seen it with leaves but apparently they're fern-like.
I put them in a tray with a little bit of water and the stump just sucks the water up so quickly! It's actually growing roots that are reaching out. I've watered 3 times now and all the water was absorbed so quickly. The stump itself is looking much better. It's not as dry and the moss is turning green, but one of the orchids on one stump is losing leaves. Someone I know has had one of these for about 2 years and he said they regularly drop their leaves (usually after flowering) and later grow a new pair.
Ok so with the Bulbophyllum lead, I think I've found it. Bulbophyllum sandersoni
http://www.orchidspecies.com/orphotd...oelliottii.jpg
According to the Flora of Zimbabwe site it is a common epiphyte (herbaceous perennial) that grows in high rainfall areas. They're supposed to be a yellow-green colour but mine do look a bit too yellow so just keeping them in a high light area with no direct sunlight.