No, it is not a retusa for sure (100% sure) I have 30 Rhynchostylis retusas collected through out their geographical range from the Indian subcontinent all the way to Thailand. None look like this nor do they produce a spike like this. This spike is characteristic of a young R. gigantea. I would still back my earlier hypo thesis that it is a R. gigantea hybrid. But I am leaning to believe that it is a Vandopsis, but never seen such a small one bloom before.
Quote Originally Posted by serama View Post
Seems too small to be Vandopsis gigantea and too large to be Hygrochilus parishii ... and both plants have naturally very dark green leaves (although that is culture dependent and a bad indicator, I know) that are wider compared to their overall length than the leaves on your plant. My guess would be a young Rhynchostylis ... not gigantea, the leaves are not wide enough, not coelestis, the leaves are not curved enough ... I think it could be a young Rhynchostylis retusa.

If you could photograph the tips of the leaves, that would be quite helpful. Rhynchostylis have very retuse (hence the species name ) and unequally lobed leaf tips, whereas in Vandopsis and Hygrochilus the tips are more equally lobed.

This "guessing game" is strangely exciting. Can't wait to see the fully open flowers now!