Rhyncholaeliocattleya Denham (Rhyncholaeliocattleya Doctor G. Macdonald × Cattleya Britannia)

The orchid Rhyncholaeliocattleya Denham is a hybrid in the Rhyncholaeliocattleya genus. registered with the Royal Horticultural Society by Black & Flory in 1928. Registered parents are Rhyncholaeliocattleya Doctor G. Macdonald × Cattleya Britannia. The key influencing species of this hybrid are Cattleya warscewiczii (37.50% subgenus Cattleya section: Cattleya ) Cattleya dowiana (18.75% subgenus Cattleya section: Cattleya ) Cattleya labiata (12.50% subgenus Cattleya section: Cattleya ) listed in order of their genetic contribution.