The orchid Phalaenopsis Troy is a hybrid registered with the Royal Horticultural Society by Thornton's Orch. in 1978. It is originated by Fredk.L.Thornton
Top three species ancestors and their influences are

• Phalaenopsis amboinensis (50.00%)  subgenus Polychilos  section: Amboinenses 
• Phalaenopsis mannii (25.00%)
• Phalaenopsis violacea (25.00%)  subgenus Polychilos  section: Zebrinae