The orchid Cattleya Ivernia (1901) is a hybrid registered with the Royal Horticultural Society by Charlesworth Ltd. in 1901.
Top three species ancestors and their influences are

• Cattleya tenebrosa (50.00%)  subgenus Crispae  section: Crispae   series: Cattleyodes 
• Cattleya warscewiczii (25.00%)  subgenus Cattleya  section: Cattleya 
• Cattleya purpurata (25.00%)  subgenus Crispae  section: Crispae   series: Cattleyodes