The orchid Bulbophyllum Stella Mizuta is a hybrid registered with the Royal Horticultural Society by B.Thoms in 1996. It is originated by Richella
Top three species ancestors and their influences are

• Bulbophyllum lobbii (50.00%)  section: Sestochilos 
• Bulbophyllum macranthum (50.00%)  section: Stenochilus