thanx all for replies :)
the size of the flower is 7cm and of the leaves 21cm.
kanavaru is right, it's from popow :wink:
i have not experience whith spicerianum and i don't no why popow named it gigantea...
i'm beginner with paph :o
several things occurred at the same time. 10 days of holidays, ventilation broke down, red spiders and other insects proliferated, some started has to rot and to finish I was mistaken in proportioning in the treatment. :(:(:(:sob:
my Mexipedium is dead... :sob: as much of my plants in my orchidarium this winter. :(
currently I experienced a new substrate and Fanaticum is one of the Paph which tests this one.