Great flower. The petals are SIGNIFICANTLY wider than any I've seen. I can understand Eric's comment, but I don't know what you could cross with a besseae to get this result. I think you have another winner here. Mike
Wow that is a very nice and interesting flower! But at first glance my impression was kovackii hybrid.... Is it possible to see picture from different angle from the pouch...
Fritz Schomburg x besseae = Robert-Jan Quené look something like that!