Rhyncholaeliocattleya Memoria Ralph Placentia (Cattleya Mem. Albert Heinecke × Rhyncholaeliocattleya Norman's Bay)

The orchid Rhyncholaeliocattleya Memoria Ralph Placentia is a hybrid in the Rhyncholaeliocattleya genus. registered with the Royal Horticultural Society by Stewart Inc. in 1973. Registered parents are Cattleya Mem. Albert Heinecke × Rhyncholaeliocattleya Norman's Bay. The key influencing species of this hybrid are Cattleya dowiana (43.75% subgenus Cattleya section: Cattleya ) Cattleya dowiana var. aurea (9.38% ) Cattleya labiata (9.38% subgenus Cattleya section: Cattleya ) listed in order of their genetic contribution.