The orchid Aranda Ossea 75th Anniversary is a hybrid registered with the Royal Horticultural Society by OSSEA in 2003. It is originated by Koh Keng Hoe
Top three species ancestors and their influences are

• Vanda dearei (37.50%)  section: Deltoglossa 
• Arachnis flos-aeris (25.00%)
• Vanda sanderiana (18.75%)  section: Roeblingiana