My immediate thought was wenshanense, but that didn't quite fit with the overall shape of the flower... then reading the thread, I found Paphluvr and Rudolf's (Guru) input about wenshanense x concolor convincing...now I'm back to doubting as concolor is such a variable species...though, on the other hand, that staminode is that really to be perceived as pure concolor???
Nice flower and plant, though, will be wonderful to see it with all those leads mature and in flower!
