This flower is lovely in shape and stance, the whiteness is pure and the stem is tall, compared with the mayority of P. godefroyae fma. album.
I'm far away from instructing you and it's your decision what you write on the tag but I think it's worthy to say that in a taxonomic way P. leucochilum album dosn't exist. P. leucochilum is only a variaty or forma (depends of the taxonomist) of P. godefroyae and distinguishs from it by its pure white pouch. So a pure white flower could be both P. godefroyae and P. leucochilum....but the name of the species is that what counts in this way.