To confirm the registration of a Dendrobium hybrid & view its composition/progeny: (Database as at 1 January 2018 RHS registrations)
Den. Tumphal= Indonesia x phalaenopsis ( has 10 hybrid progeny ) registered: 1/01/1957 by Singapore Bot. Gdns
ANOS judging segment: Australasian (Section Ceratobium / Phalaenanthe )
Note: pollen parent as Den. phalaenopsis a synonym of Den. bigibbum var. superbum.
Species composition summary:
Den. Tumphal = Indonesia x phalaenopsis = [phalaenopsis x violaceoflavens] x phalaenopsis