At any rate this isn't Paph. wentworthianum because neighter the shape of the flower nor of the staminode fit to this species. The whole flower but the staminode looks like of the Paph. appletonianum complex (appletonianum/celebense/bulleanum). Who says it's a true species ? Maybe its a hybrid....for example with P. sangii?? P. sangii has a weird staminode and the shape of the flower isn't that far of P. appletonianum. ??