A primary hybrid of Ctsm. saccatum x Ctsm. pileatum (yellow colour form). This one is from BVOrchids and I think it's of the same capsule as Ramon's plant, but I also like the flowers of veekay's Sumani posted in this forum one year ago.
Interesting shape! If it is BV's saccatum x pileatum 'yellow' it should indeed be the same capsule... Yours however has a lip that resamples more a xtapiriceps than a standard Sumani... Not to be surprised however, as the consensus is more that yellow pileatum are actually the result of of gene introversion from macrocarpum which could result in some plants having those genes been expressed..