Guarthroleya Diana Roberts (Cattlianthe Meadii × Caularthron bicornutum)

The orchid Guarthroleya Diana Roberts is a hybrid in the Guarthroleya genus. registered with the Royal Horticultural Society by Harold Johnson in 1996. Registered parents are Cattlianthe Meadii × Caularthron bicornutum. The key influencing species of this hybrid are Caularthron bicornutum (50.00% ) Guarianthe bowringiana (25.00% subgenus Circumvola section: Moradae ) Cattleya forbesii (25.00% subgenus Intermediae ) listed in order of their genetic contribution.