Rhyncattleanthe Blue Grotto (Cattlianthe Blue Boy × Rhyncattleanthe Victoria)

The orchid Rhyncattleanthe Blue Grotto is a hybrid in the Rhyncattleanthe genus. registered with the Royal Horticultural Society by Beall in 1969. Registered parents are Cattlianthe Blue Boy × Rhyncattleanthe Victoria. The key influencing species of this hybrid are Guarianthe bowringiana (31.25% subgenus Circumvola section: Moradae ) Cattleya labiata (18.75% subgenus Cattleya section: Cattleya ) Cattleya tigrina (12.50% subgenus Intermediae ) listed in order of their genetic contribution.