The orchid Cattleya Riva is a hybrid registered with the Royal Horticultural Society by S.Low in 1924.
Top three species ancestors and their influences are

• Cattleya labiata (50.00%)  subgenus Cattleya  section: Cattleya 
• Cattleya warneri (25.00%)  subgenus Cattleya  section: Cattleya 
• Cattleya purpurata (25.00%)  subgenus Crispae  section: Crispae   series: Cattleyodes