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! 🙂