The orchid Paphiopedilum Stone Ground is a hybrid registered with the Royal Horticultural Society by R.Cryder in 1975.
Top three species ancestors and their influences are

• Paphiopedilum stonei (50.00%)  subgenus Polyantha  section: Mastigopetalum 
• Paphiopedilum glaucophyllum (50.00%)  subgenus Cochlopetalum