I had some trouble with this plant, but finally it is recovered and blooming again! This lowland race of C. maxima has tall plants with long leaves (the leaf that appears just behind the flowers is 16" long!).
I personally love this race's lip with its purple veins on white background!
Flowers:
Cattlya maxima (Lowland ssp.) on Flickr - Photo Sharing!
Plant and flowers:
Cattleya maxima (Lowland ssp.) on Flickr - Photo Sharing!
Detail of the veined lip:
Cattleya maxima (Lowland ssp.) on Flickr - Photo Sharing!