To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st January 2020 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Den. Ellen
= kingianum x tetragonum ( has 75 hybrid progeny ) registered: 1/01/1928 by SchmidtANOS judging segment: Australian (Section Dendrocoryne )
Species composition summary:
kingianum 50.% tetragonum 50.%
Detailed composition:
Den. Ellen = kingianum x tetragonum