Cattleya Derna (Cattleya Nugget × Cattleya dowiana)

The orchid Cattleya Derna is a hybrid in the Cattleya genus. registered with the Royal Horticultural Society by Black & Flory in 1941. Registered parents are Cattleya Nugget × Cattleya dowiana. The key influencing species of this hybrid are Cattleya dowiana (82.81% subgenus Cattleya section: Cattleya ) Cattleya bicolor (7.81% subgenus Intermediae ) Cattleya tenebrosa (6.25% subgenus Crispae section: Crispae series: Cattleyodes ) listed in order of their genetic contribution.