The orchid Cattleya Wilmoss is a hybrid registered with the Royal Horticultural Society by Brighton Orch. in 1949.
Top three species ancestors and their influences are

• Cattleya mossiae (50.00%)  subgenus Cattleya  section: Cattleya 
• Cattleya purpurata (12.50%)  subgenus Crispae  section: Crispae   series: Cattleyodes 
• Cattleya trianae (12.50%)  subgenus Cattleya  section: Cattleya