The orchid Paphiopedilum Nellie is a hybrid registered with the Royal Horticultural Society by Law-Schofield in 1899.
Top three species ancestors and their influences are

• Paphiopedilum charlesworthii (50.00%)  subgenus Paphiopedilum  section: Paphiopedilum 
• Paphiopedilum tonsum (50.00%)  subgenus Sigmatopetalum  section: Punctatum