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. Andrew Persson = speciosum x falcorostrum Registration: 1960 by Slade G.H. -Persson
Progeny:
x with:
Bardo Rose = Ultravox 1984 Banks, David
Brian's Quest = Ray's Gem 2019 Gribble R.
Colonial Summit = Andrew's Summit 2008 Zietsch J.
X delicatum = Tom Jupp 1974 Jupp V.&N.
falcorostrum = Andrew's Falcon Mills E.C. -O/U
kingianum = Alan Printer 1969 Jupp V.&N.
Kingrose = Tracy Wray 1991 Wray S.
speciosum = White Magic 2009 Castle Creek
tetragonum = Ira's Star 1988 Batchelor S. -Butler I.