Cattleya Rex (1916) (Cattleya Doris (1904) × Cattleya Empress Frederick)

The orchid Cattleya Rex (1916) is a hybrid in the Cattleya genus. registered with the Royal Horticultural Society by Armstrong/Brown in 1916. Registered parents are Cattleya Doris (1904) × Cattleya Empress Frederick. The key influencing species of this hybrid are Cattleya dowiana (50.00% subgenus Cattleya section: Cattleya ) Cattleya coccinea (25.00% series: Sophronitis ) Cattleya mossiae (25.00% subgenus Cattleya section: Cattleya ) listed in order of their genetic contribution.