The orchid Paphiopedilum Crossianum is a hybrid registered with the Royal Horticultural Society by Lady Ashburton in 1873.
Top three species ancestors and their influences are

• Paphiopedilum insigne (50.00%)  subgenus Paphiopedilum  section: Paphiopedilum 
• Paphiopedilum venustum (50.00%)  subgenus Sigmatopetalum  section: SIgmatopetalum