The orchid Dendrobium Gillieston Jazz is a hybrid registered with the Royal Horticultural Society by W.Skillicorn in 1996.
Top three species ancestors and their influences are

• Dendrobium tetragonum (37.50%)  section: Dendrocoryne 
• Dendrobium kingianum (31.25%)  section: Dendrocoryne 
• Dendrobium bigibbum (25.00%)  section: Phalaenanthe