Cattleya gigas var. alba
Syn.Cattleya warscewiczii var. alba
"It is no wonder Jean Jules Linden felt he had found the pot of gold at the end of the rainbow when he found his C. gigas. Linden, however, went straight to the point when he said, “Cattleya gigas is quite simply the most beautiful orchid in the world.” from The classic Cattleyas A.A. Chadwick and Arthur E. Chadwick.